Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2
Lot 791:
1922, black Dollard overprint on ½p-10p, complete set of eight, and 2½p, 4p, 9p with red and 4p with carmine overprint, full OG, NH or hinged (4p carmine), mostly VF, Hibernian #T1-8, T9-11, T10A, €250, Est. $100-$150 , Sc. #1-8, 9-11, 10A
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