If it doesn't SAY somewhere on it that it's a Gillette, it is not.
Sorry guys but I have a bulldog 1914 with the serial number and no Gillette stamp.
Also, look at these Old types from Mr-Razor site.
- No Gillette Stamp 1
- No Gillette Stamp 2
- No Gillette Stamp 3
and there's more.
The ShaveWiki says: "From Oct 18 1927 to Aug 27 1928, there were no serial numbers used."
that´s right for the New Improved razors. The Old Type razors are without serial number from 1921 to 1929.
Thanks for the correction. I thought it sounded like a very short time period for the Old Type.