Image #1
WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY
Czechoslovakia
Lot # 63 | **/* | Scott # C7a-8a
| 1922, two stamps with black inverted surcharges 50 on 100h green and 100 on 200h violet, full OG, NH or LH (C8a), VF, expertized by Blaha, Gilbert and others, C.v. $300 as hinged, Pofis #L4-5Pp, CZK8,000 . |