Since I went on vacation I scored a Gold Aristocrat razor the first I've ever seen and now a Silver Aristocrat both with the notched center post placing them as 1948 both with no noticable plate loss I also found this other razor it says pat. jan 1920 u.s.a./ Gillette made in U.S.A./seriel #527199B again no noticable plate loss was tarnished jet black when I got it, a few minutes with scubbing bubbles, toothpaste and brush and a polishing cloth and it looks like this I'm not sure what it is if any one knows please let me know. Best of all I've less than $30 invested in these 3 razors