Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3
Lot 1469:
1918, two perforated stamps of 3.50r maroon and green with black overprint (type 2), one has inverted overprint, both are postally used, invert with Khashchevato cancellation, mostly VF, C.v. $165, Est. $100-$150 , Bulat #1441, a
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