How can you tell if a poster is really signed

I bought a poster that was advertised as 'signed'. Is there a way to tell if it's actually been physically signed by someone with a marker of if the signature is just printed on there?

I had no idea what category to put this in, sorry if there is a better place for it, if there is I couldn't find it :)
Anonymous User
Anonymous User
Asked Sep 22, 2015
Edited Sep 22, 2015

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