12-20-2017, 07:52 PM
#1
  • rev579
  • μαθητής
  • East Texas
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Great Caesar's Ghost! What does an 816 date code on an old gillette DE blade even mean? 
"3 digit code: 1=year, 2/3=week"

  • 1908 or 1918?
  • 16th week of the year?
  • "No" above stropping/honing begins in 1914.
  • 1 1/8" diamond & Pat. # begins in 1915.
  • In 1920 the Diamond and Arrow are reduced to 7/8" wide.


These notes date the razor(s) between 1915-1920. So can someone help me figure out the crazy "Date Code"?


[Image: 25321595038_39f65d7422.jpg]

[Image: 39186748601_d90e21089e.jpg]

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 12-20-2017, 11:50 PM
#2
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Razor Emporium - who is one of our vendors by the way - have a webpage about Gillette date codes.

Short version;
- Production of three hole blades starts in 1903, marking the lower possible bound on your blade
- From 1904, blades were marked with  year / month / day / lot serial #'s
- The "Diamond and Arrow" logo was introduced in 1908, but with only the steel lot# on blade.
- Starting in 1911, they used a three digit date code (1=year, 2/3=week)
- Starting in 1925, they used a four digit date code (1=decade/ RH# of 2+3=year/ 2+4=week)
- And 1928 was the last year for 3-hole blades, putting an upper bound on your blade

So by a bit of logic, your blade can't be from 1908, since it has a date code and it can't be from 1928 since it has a three digit code. So what you have there is a blade made in mid April 1918 Biggrin

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 12-21-2017, 07:04 AM
#3
  • rev579
  • μαθητής
  • East Texas
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Sounds good enough and what I assumed, but couldn’t find a key to serve as a “Rosetta Stone” and confirm my attempts to translate the code.

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