Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3
Lot 1453:
VALUABLE COLLECTION OF TYPE 2GG: 1918, 172 mostly mint stamps (14 – used), representing 31 stamps with inverted overprint (12 not mentioned in the Cat.), among better perforated – 25k normal plus inverted overprint, 1r with inverted overprint, 3.50r in block of four with inverted overprint, imperforated – 20k with violet, 1r with violet and red overprints, 3.50r pair with inverted overprint and more, full OG, NH, LH/hinged or used, F/VF, ex-Dr. Seichter, Dr. Zelonka and others, C.v. is over $5,500, Est. $1,600-$2,000, Bulat #508/62
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