Worldwide Stamps and Covers Czechoslovakia Semi - Postal issues
Sale No: 92
Lot No:774
Symbol:C
Cat No:B37-38
Semi - Postal issues. 1919, two surcharges on Austrian air post stamps, 1.50k on 2k lilac and 2.50k on 3k ocher, used on pre-printed banking envelope locally sent in Prague, wax seal on reverse, VF, Est. $250-$300 (Image)