These post office seals are only listed in the Scott Specialized Catalog of US Stamps. My copy is rather old (2002) so the values may have changed, but a OX5 is valued at $0.75; an OX5a (which is defined as an imperforate pair) is valued only as a pair at $50.00. All are MNH prices. (In fact, the OX5a isn't even valued in used condition.)
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Posted 06/03/2011 5:55 pm
