They're both 1 cent green A140, unwmk, imperf. I'm guessing that maybe the 481 is rotary press? Also,mine has two large rectangular "perforations" on one side. Is this a Schermack?
Both were issued imperforate: 481 is flat plate and 531 is offset. Without seeing the stamps, yes it sounds as if you have a Schermack perforated stamp.
YES...everyone is correct. Color is different also. #531 is a dull green, easy to tell the difference for a #481 which is a deep green color. Side by side....easy. Plus flat vs offset.
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Posted 09/17/2013 12:31 pm
