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catangen
Posted March 17, 2025 - 7:29am

In reply to by FifthAvenueRes…

A thought that keeps popping into my head is that we know the symbols used in date coded appear in more than one year. Some of them are used several times. Is it feasible that these codes existed prior to the beginning of our chart, prior to 1924, and that possibly the 'O' was used in say...1919 when the Providence logo seems to have been registered??