Hi, im new and know nothing. Bought this box of post cards at antique shop and some have stamps. Very curious if any are of any value. A Franklin has a green line across top and no perforation. A washington 1c postmarked 1923 frame measures 22.5 x 19 but how do I know if its perf 11? I just started researching a couple hrs ago and purchased them a few hrs ago any help is greatly appreciated seeing my excitement maybe altering my reality to wishful thinking. Omg can't figure out this image optimizer...frustrated, please help
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