UNITED STATES POSTAL CARD MISCELLANY. binder of approximately 240 cards (and a few envelopes), about half of which bear various "Return to Sender" markings, the other half an assortment of military postmarks, branch post offices, DPOs, FDCs, slogans, and commemorative cancels, the majority early- to mid-20th Century but some earlier, generally very fine, ideal for the modern postal historian