every double ring/old type owner used theirs today, as today was the earliest patent date for gillette razors
And this bit of shaving trivia was brought to us by the "Guru" of SE shaving. You go figure. I do know that he has somewhat fallen off the SE wagon with his love affair with very early Gillette DE razors. Just like I have done the reverse and fallen in love with some great early GEM lather catcher razors. Thanks Dave for the info. I have to mark that date on my calendar so we can celebrate the occassion together next year.