Another question: When were the Gentile "message weights" made?
Jean Melvin's book (second edition 1970 - in which I have now found the reference (page 71) to the "Good Luck" weights I was originally searching for) gives an excellent coverage of many American makers who are not covered in much depth in other books. However, I find it difficult to understand what type of weights were made at what time by Gentile (and others) as the text on dating is, at best, quite generalised. (Or maybe I need to study the book more closely?)
Were the Gentile "message weights" made by both Peter and John Gentile? If so, it would seem they range from 1920s (or earlier?) through to at least the 1960s. Also, there is a reference to the use of "older dies" by Gentile but no real detail on how old!