Dating Vintage Gillette Safety Razors
List of Gillette US, British, and Canadian production / serial numbers / date codes and other identifying marks for New as well as Seasoned Collectors with Ultimate Pro Tips at the bottom.
1904: 1 to 25,400 (US production; Canadian production began late 1906 without serials)
1905: 25,401 to 300,000 (US production)
1906: 300,001 to 415,750 (US production)
1907: 415,751 to 526,625 (US production)
1908: 526,626 to 636,375 (US production; British "Made in England" stamps appear on sets without serials)
1909: 636,376 to 749,000 (US production)
1910: 749,001 to 876,000 (US production)
1911: 876,001 to 999,999 (US production)
1912: 1,000,000+ continuous numerical sequence without prefix (US production)
1913: Continuous numerical sequence without prefix (US production)
1914: Continuous numerical sequence without prefix (US production)
1915: Continuous numerical sequence without prefix (US production)
1916: Continuous numerical sequence without prefix (US production)
1917: Continuous numerical sequence without prefix (US production)
1918: A-1 to A-824,198 (US prefix; Canadian and British models lack this prefix)
1919: A-824,199 to C-73,454 (US prefix)
1920: C-73,455 to D-999,999 (US prefix)
1921: E-1 to K-999,999 (US prefix; British production stamps "Made in England" underneath head)
1922: 2-A to 226,643-A (US suffix; Canadian prefix is "C" followed by numbers)
1923: 226,644-A to 705,739-A (US suffix)
1924: 705,740-A to 100,000-B (US suffix)
1925: 100,001-B to 564,302-B (US suffix)
1926: 564,303-B to 165,119-C (US suffix)
1927: 165,120-C to 704,904-C (US suffix)
1928: 704,905-C to 115,004-D (US suffix)
1929: 115,005-D to 210,000-E (US suffix)
1930: 210,001-E onwards / No codes on "New" models (British "New" models stamped "Brit. Pat. No. 363.033")
1931: No date codes (US marked Patents Pending; Canadian marked "Made in Canada")
1932: No date codes on standard models (British models marked "Great Britain Patent No. 430.033")
1933: No date codes on standard models
1934: No date codes on standard models (British "No. 70" and "Aristocrat" sets introduced)
1935: No date codes on standard models
1936: No date codes on standard models
1937: No date codes on standard models
1938: No date codes on standard models
1939: No date codes on standard models
1940: No date codes on standard models
1941: No date codes on standard models (US wartime production shifts to black/khaki sets)
1942: No date codes on standard models
1943: No date codes on standard models
1944: No date codes on standard models
1945: No date codes on standard models
1946: No date codes on standard models (US Aristocrat/Milord lines restart without codes)
1947: No date codes on standard models (US introduces notched center bars)
1948: S (Code on blade wrappers only; Canadian and British packages lack this stamp)
1949: T (Code on blade wrappers only)
1950: V (1-4) (US base plate stamp; Canadian plates stamped "Made in Canada" but lack letters until 1951)
1951: W (1-4) (Standardized letter codes begin appearing on Canadian base plates)
1952: X (1-4)
1953: Y (1-4) (British "Rocket" and "HD" models stamped "Made in England" but lack letter codes)
1954: Z (1-4)
1955: A (1-4)
1956: B (1-4)
1957: C (1-4)
1958: D (1-4) (British equivalent "Toggle" models do not use the letter format)
1959: E (1-4)
1960: F (1-4)
1961: G (1-4)
1962: H (1-4)
1963: I (1-4) (British production adopts the standard US Letter system on select adjustable models)
1964: J (1-4)
1965: K (1-4)
1966: L (1-4)
1967: M (1-4)
1968: N (1-4)
1969: O (1-4)
1970: P (1-4)
1971: R (1-4) (Letter Q is skipped across all factories to avoid confusion)
1972: S (1-4)
1973: T (1-4)
1974: U (1-4)
1975: V (1-4)
1976: W (1-4)
1977: X (1-4)
1978: Y (1-4)
1979: Z (1-4)
1980: A (1-4) (The code system restarts at A; country origin text remains on base plate)
1981: B (1-4)
1982: C (1-4)
1983: D (1-4)
1984: E (1-4)
1985: F (1-4)
1986: G (1-4)
1987: H (1-4)
1988: I (1-4) (Final era of traditional safety razor date coding before cartridge dominance)
Key Rules for Global Differentiation
The Text Stamp: Always look at the text stamped under the head first. It will explicitly state "Made in U.S.A.", "Made in England", or "Made in Canada".
The Missing Code Rule: If you have an adjustable razor (like a Rocket or Aristocrat) that looks identical to a 1950s US model but completely lacks a letter date code, it is almost always a British factory production item.
The Canadian "C" Prefix: If you see an early 1920s numerical serial number that begins with a clear capital letter "C" (e.g., C12345), it is an early Canadian plant serial number, whereas US serials kept the letter at the end during that specific timeframe
Advanced Tips for Global & Ornate Gillette Identification
Brazil Factory (Indústria Brasileira)
The Text Stamp: Look for "Ind. Bras." or "Indústria Brasileira" stamped on the underside of the base plate.
The Logo Variant: Brazilian models from the 1960s and 1970s often feature a slightly thinner, elongated version of the traditional diamond Gillette logo.
Code Chronology Variations: Many Brazilian-made Super Slim Twist and Knack variants do not follow the standard US date matrix; they frequently use standalone letters that do not align with US production years or skip the quarter number entirely.
American Button Company (ABC) Sets
Case Match Consistency: Authentic ABC cases feature external metal texturing that matches the razor handle pattern exactly (e.g., a floral case for a floral handle).
Case Patent Mark: The exterior bottom of the metal travel case must display a stamped November 1907 patent date to be considered a genuine ABC-produced housing.
Cap Alignment Geometry: Authentic ABC razor caps lack the interior alignment ribs seen on later standard Gillette Old Types, relying entirely on slightly thicker, shorter guide pins.
British Production (No-Code Era)
The "Diamond" Base Plate: British 3-piece models (like the Tech) from the 1940s–1950s feature a distinct, wide diamond-shaped recessed floor where the handle meets the head, whereas US versions feature flat plates with standard slots.
Solid Guard Bars: Many British-made 1930s "New" models utilize a solid flat guard bar instead of the open-comb teeth found on contemporary US "New" models.
Internal Patent Marks: British Rockets and Aristocrats from the late 1940s and early 1950s often display "Brit. Pat. 694093" stamped inside the blade floor or near the handle's twist-to-open (TTO) knob.
US Production Troubleshooting Cues
The 1940s TTO Rule: If a gold-plated Aristocrat or Milord has no date code but features smooth end-caps covering the side mechanism rods, it is from 1946–1947. If the rods are completely exposed on the side profile, it is a pre-war 1941–1942 build.
The Tech Slot Shift: Pre-1960 US Tech models feature triangular alignment slots on the base plate, while post-1960 versions transition to purely rectangular slots.
Other European Variations
French Distribution Marks: French-distributed Gillettes frequently omit serial numbers but feature an "Importé d'Angleterre" (Imported from England) or "Marque Déposée" stamp under the cap.
German Patent Marks: Pre-WWII models manufactured for or sold in Germany will feature a "D.R.P." (Deutsches Reichspatent) stamp instead of traditional US or British patent numbers.
The Handle Thread Trap (US vs. British/Modern Fits)
The Standard US Thread: The vast majority of vintage US-made Gillette three-piece safety razors (like the Old Type, New, and Tech) use a standard American No. 10-32 UNF thread size on the top of the handle.
The British Metric Exception: Many British-made Gillette three-piece razors (especially certain British Tech variations) use a proprietary thread pitch or a metric M4.5 x 0.75 thread.
The Compatibility Issue: If a user tries to force a British Gillette head onto a US Gillette handle (or onto a modern reproduction handle), the threads will cross-thread and jam after about one or two turns.
Modern Compatibility Note: Most modern safety razors manufactured today use a metric M5 x 0.8 thread. While a vintage US Gillette 10-32 handle will sometimes loosely screw onto a modern M5 head, it is not a perfect structural fit and can strip the threads over time if tightened too firmly.
Hidden Variations & Collector "Gotchas"
The Hidden Date Codes (1950s TTO Models)
The Inside-the-Floor Trick: On early 1950s Twist-to-Open (TTO) models like the Super Speed, the date code isn't always stamped on the bottom of the base plate. Open the doors completely and look inside the blade floor—the letter and number code is often stamped directly into the floor plate, split on either side of the center bar.
Franken-Razors (Mixed Parts)
The Head/Handle Misalignment: Because Gillette head pieces screw apart easily on three-piece models (Old Type, New, Tech), collectors frequently encounter mismatched "Franken-razors." If a serial number on the guard indicates 1908 but the handle pattern is a 1920s style, or a US-stamped head is attached to a British-patterned handle, the razor has been pieced together from different eras.
The Fatboy vs. Slim Visual Check (1958–1968)
The Collar and Dial: Beginning collectors often mistake the iconic Fatboy (1958–1961) for the later Slim Adjustable (1961–1968).
The Fatboy has a shorter, thicker handle with a knurled adjustment dial positioned directly below the head collar.
The Slim has a longer, narrower handle, a longer smooth collar piece between the head and the dial, and flatter vertical knurling lines on the handle body.
The "Toggle" Bottom Variations
The Rare Position Shift: On the highly collectible Gillette Toggle adjustable razors, early prototypes and rare 1958 versions feature a chrome or gold mechanical toggle switch that operates on a completely different internal spring mechanism than the standardized 1960 models. Always check if the toggle clicks completely flush into the handle base or hangs slightly loose, which indicates internal spring fatigue.
Gold-Plated "Lacquer" Wear
The Color Illusion: Pre-war and 1940s gold-plated Gillettes (like the Milord or gold Tech) were coated in a protective clear lacquer. Over decades, this lacquer can wear off unevenly or tarnish, making the exposed brass look dark copper or silver-toned. Collectors often misidentify a worn gold razor as a rare nickel variant because the remaining gold layer has completely stripped away.
Rare Markings & Identification Anomalies
The Service Set Serial Numbers (WWI Era)
The "Pocket Edition" Matrix: During World War I (1917–1918), Gillette produced millions of Khaki Sets and Property US Army trench sets. Many of these military-issued Old Type razors skip the standard alphabetical prefix entirely and feature a stamped "J" or "K" serial number sequence, or are completely blank on the guard due to emergency high-speed war production.
The Double Serial Stamp: Extremely rare transition models from 1921 can be found with a standard six-digit serial number on both the upper guard surface and the inner handle barrel. If the two numbers do not match perfectly, it indicates a factory-mixed transition set or a pieced-together replacement.
Adjustable Razor Red Dot & Fatboy Prototype Variations
The "Red Dot" Fatboy Myth: Collectors frequently search for the ultra-rare 1958 "Red Dot" toggle and bottom-dial adjustable prototypes. A genuine Red Dot features a physical, painted circular indentation tracking the adjustment position. Beware of standard Fatboys or Slims where a previous owner simply used red model paint to touch up the standard clicker numbers.
The Bottom Dial Grail: The rarest commercial adjustable model is the 1960 (F-4) Bottom Dial Fatboy. Unlike standard Fatboys where the 1-9 dial is at the top of the handle, this variation places the adjustment wheel at the very bottom, right above the twist-to-open knob.
The Tech Base Plate Evolutions (Flat Bottom vs. Triangle)
The Flat Bottom Tech: Highly sought after by collectors for its aggressive shave profile, the British Flat Bottom Tech lacks the sunken, stamped center channel found on standard US Tech base plates. The entire underside profile is completely flat and flush from edge to edge.
The Pre-War Triangular Slot: US Techs produced from 1938 to 1945 feature distinct triangular scalloped lather slots on the safety bar. Post-WWII models (1946–1970s) transitioned to purely rectangular, straight slots, which heavily alters the collectibility and resale value.
The "New" Model Corner Pin Variations
Long Comb vs. Short Comb: The 1930s Gillette "New" line is divided into Long Comb and Short Comb open-tooth configurations.
Long Comb: The teeth extend further out from the guard and the head features a wide, flat center bar.
Short Comb: The teeth are stubby, and the underside features a narrow, raised track.
The Corner Pins: Look closely at the underside corners of a "New" head. Certain deluxe variations feature tiny raised structural corner corner-pins designed to lock into matching indentations on specific premium cases.
The Super Speed Color-Coded Tip Guide (1950s)
Blue Tip: Features a light blue mechanical twist knob at the base. Built with an aluminum handle and a milder head geometry designed for sensitive skin or light beards.
Red Tip: Features a dark red mechanical knob. Constructed with a heavy, thick steel handle and a significantly wider blade gap designed for aggressive, close shaving.
Black Tip: Produced during the Korean War era (1951–1952) due to brass shortages. Features a black plastic or bakelite twist knob and occasionally an steel or aluminum handle tube.
Blade Wrappers as Historical Proxies (1930–1949)
The "Shadow" Dating Method: If you find a transitional 1930s or 1940s razor completely lacking a stamped date code, look inside the presentation case for any surviving vintage Gillette Blue Blades. Gillette began using a highly reliable letter date-code matrix on the thin steel blades starting in 1931 (A = 1931, B = 1932, etc.). If the razor is original to the case and includes its period-correct blade package wrapper, you can approximate the execution year of the razor head itself.
The Collector’s Field Guide: Spotting Defects & Cleaning Hazards
Mechanical Integrity Check (Twist-to-Open Models)
The Over-Tightening "Quarter-Turn": On fully functioning Gillette Super Speeds, Fatboys, and Slims, the bottom TTO knob shouldn't just stop spinning when the doors touch. Authentic Gillettes require a final locking quarter-turn to tension the internal spring. If the knob spins loosely without pulling the doors flat, or if it lacks that final locking resistance, the internal TTO rod mechanism is stripped or bent.
The Lazy Door Syndrome: Open the mechanical doors completely. Both silo doors must open symmetrically at exactly the same speed and angle. If one door hangs low or sits unevenly when closed, the razor has likely been dropped, throwing the alignment bars out of absolute square and making it dangerous to shave with.
Plating Conditions: Solder Cracks & Ghosting
The Infamous Handle Barrel Split: The single most common manufacturing flaw on vintage Gillette Single Rings and Old Types (1904–1920s) is a hairline vertical crack down the hollow brass handle barrel. Gillette originally press-fitted the neck and smooth knob assemblies into the tube, creating structural tension. Over decades, the brass expands and splits. While still collectible, a split handle significantly lowers resale value.
The "Plate Dropping" Flake: Nickel and chrome plating hold up well to deep ultrasonic cleanings, but once plating begins to bubble, lift, or expose the dull yellow brass underneath, it cannot be reversed without a complete professional re-plating.
Chemical & Cleaning Hazards (The Value Killers)
The Gold Plating Clear-Coat Trap: NEVER use abrasive metal polishes (like Brasso), boiling water, or baking soda soaking baths on gold-plated Gillette razors (such as the Aristocrat, Milord, or Executive). Gillette applied a microscopically thin 24k gold layer, followed by a clear protective nitrocellulose lacquer finish. Harsh chemicals strip the lacquer instantly, and the gold layer will wipe completely away with a cloth, leaving behind raw, bare brass.
The Bleach Disaster: Never use chlorine bleach or heavily acidic cleaners on nickel-plated, silver-plated, or gold-plated safety razors. It causes immediate, deep black chemical tarnish and permanent pitting in the alloy base metal. Stick to a soft toothbrush, standard dish soap, and a brief soak in hot tap water.
A Note on Travel & Storage Safety
Vintage Gillette safety razors are rugged, precision-engineered tools, but they are highly vulnerable to impact damage and moisture when traveling or stored incorrectly. Dropping a twist-to-open razor can instantly bend the alignment bars, causing "lazy doors" or uneven blade gaps that make the razor completely unusable. Furthermore, tossing a classic three-piece razor loosely into a standard dopp kit allows the metal pieces to clank together, which quickly chips away delicate nickel plating, ruins gold lacquer finishes, and dulls your blade.
To preserve your collection's mechanical integrity and resale value, always secure your razors in a dedicated, form-fitting container. Proper storage doesn't just protect against physical drops; it ensures open-comb teeth stay straight, handle barrels don't crack, and internal components remain properly aligned for a safe shave every single time.
Check out my custom fitting razor cases, designed to hold the razor properly to protect and preserve it for another 100 years.