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Old 11-01-2012, 08:49 PM   #3 (permalink)
Join Date: Aug 2011
Posts: 9,962

Yeah a bunch of common plate blocks really. Some US air mail stamps can be valuable, like any 'Graf Zeppelin' of of course, the bi-plane 2 color versions(hey if you have one with an upside-down airplane(inverted jenny) on it I'll give you a million or so for it!)
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