Auction #93 Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World

GREAT SELECTION OF TYPE 2D: 1918, 95 mint and used (23) stamps in singles, pairs, strips and blocks, including imperforated 2k in used block of 10, mint single of 5k (No.369, listed , but priced with ''-'' in the Cat.), mint singles of 3.50r and inverted overprint on 7r, plus many more, full OG or used, F/VF, ex-Dr. Seichter, Dr. Zelonka and others, C.v. is almost $2,000, Est. $700-$800