Just throwing this out here to try and narrow down the years this was made. Found it today, found a great link on here but I can only figure out it is from 1910 to present. Any one have some info?
Thanks
Nick
It looks like there are very faint letters on the back. Without a backmark the best you can hope for is 1910-1917 and 1923-present. Buttons made between 17-23 had a black finish on them.