1939 Sy.D3Xz production flaw, the first issue 20h blue, smooth gum, vertical pair with production flaw - 2x vertical hair paper crease in paper; mint never hinged, interesting 1942 CDV9/II, response I. part from double PC Tiso 50h green, sent inlandly, uprated with stamp 20h Sy.49, posting special postmark BRATISLAVA/ CELOŠTÁTNÁ EXHIBITION POŠTOVÝCH ZNÁMOK 23.V.42; good condition 1939 JEZDECKÁ KORÚHEV 2/ GULOMETNÁ ESKADRONA, blue off. framed pmk arrival post with date 20.VIII.1939 on reverse, on franked letter with black PR8, RUŽOMBEROK 19.VIII.1939; good condition, rare 1940 PR36, NÁDAŠ / 25.VIII.1940, Odhalenie pamätnej table M. Kollára, Un envelope with 3 print blue special postmark; good condition