So your saying that the end point is rather unclear....ABC sets most likely went beyond the 1915 date?Yeah! Don't tell me what to -- Oh well, since I'm already here...
I wasn't saying that there definitely was a change. I was just giving an example of a reason why they might have changed the inscription, which would otherwise seem like a strange thing to do.
What would the significance of 1915 be one way or the other? From the other thread it looks like the patent numbered cases start around 1914, and I really wouldn't expect to see an ABC set past 1915 give or take, though that end point is really still rather unclear.
That's very interesting. It's also interesting that the head is stamped in the same fashion as some of those Single Rings that we see coming out of England, like elmerwood mentioned. I wonder if it was supplied unstamped to the Gillette plant that was operating in Leicester prior to WWI and the stamping was applied there. There's another aspect of the serial number that would suggest that it didn't come out of the Boston plant stamped that way, and that's the fact that they used a leading zero on the number: G051727. The way the Boston plant did it was to just leave a blank, so if it were stamped there I'd expect it to be "G 51727" instead. But the Canadian and British plants did seem to use leading zeroes.
If I were going to enter into the realm of totally wild conjecture, I might hypothesize that, as the likely main entry point into into the European market, perhaps the British plant used different letter prefixes to designate the destination country for the razor sets during these early years -- "E" for razors sold directly in the English market, "F" for France, "G" for Germany, etc. That's mostly just me talking out of my backside at this point, though.
That aside, the 1913 date that's scratched on the back is certainly possible. It's earlier than the 1914 date where we have seen the case inscription change to the patent numbers, and it's also before the start of the war when the Leicester plant would have definitely still been operating.