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Lots 448 - 450,
Catalogue of Stamp Auction #81, March 21, 2019. Raritan Stamps, Inc

Lot   Cat.#
Net Price
448  C1/6

Air Post stamps

1924, Aviation School, 10c, 25c and 2b, imperforated set of three, nice margins all around, full OG, LH, VF, only 100 imperforated stamps of each denomination were produced, Sanabria #8, 10 and 12, C.v. $600 (1966)
449  C15 var
1930, Aviation School, red Zeppelin overprint on 25c dark blue and black, horizontal pair, left stamp with inverted overprint, while right one has double overprint, full OG, LH, VF and extremely rare, only a few such errors possible
450  C13/16
1930, trial Zeppelin three-line overprint "Correo Aereo. R. S. 6-V-1930" in brown, complete setting of 25 overprints printed on thin paper, several paper folds, no gum as produced, VF and very rare, two experts' hs at the bottom right