Sorry but not from the mark.
You can get a idea from the design but as it is not solid gold it has no
date letter on a full hallmark.

Dave
wrote in message
...
Just bought a pin that states "1/20 G.F." on the back - from reading
the posts, I understand the pin is 12K gold-plated. Here's my
questions, is there a way to tell the date of the mark? Thanks in
advance





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