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HELIGOLAND - 1869-73 ½SCH STUDY COLLECTION written up on pages, mostly mint stamps with identified ORIGINAL PRINTINGS, includes 1869-73 ½sch (x21 stamps incl five used) with examples from all eight printings. Some with small imperfections and some unused stamps without gum as usual. A great lot for the specialist, ex the Robert T. Pollard collection. (21 stamps)