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Posted By: davidcycleback

If a poster or sign has been professionally reprinted, ala those tin signs, there are usually tons of the reprints around. This is because there is a big upfront cost to making lithographs, so one has to print many to lower the pr item cost. Thus, it's usually easy to determine if a particular item has been reprinted. If you have a sign and you can't find any reprints on the market, that doesn't prove yours is original, but it is a good sign.