1951Pof.L33Ms(4), Spa 6Kčs green, 4-stamps. vert. gutter, with perf and margin; mint never hinged, in the middle thin places after/around wrong placing and povolená perf, viewing of quality recommended
1967 Pof.L59xb KD, L61xb KD, PRAGA 68 1,40Kčs and 2Kčs with lower coupons, both rare optically cleared paper; mint never hinged, 2Kčs exp. by Pazout., sought
1969 COUNTER SHEET / Pof.L72 counter sheet, The first people on the Moon 30h, 2x complete sheet, plate A+B; mint never hinged, only several times little povolená perf in margin
1973 Pof.L76xb-L77xb, 50 years Czechoslovak Airlines 1,40Kčs and 1,90Kčs, both stamp. on paper optically cleared; mint never hinged, exp. Kulda, mark Pofis
1973 Pof.L79xb, 50 years Czechoslovak Airlines 3,60Kčs, stamp. on paper optically cleared; mint never hinged, exp. Vychron, often missing in collections, sought stamp on/for optically zjasněném paper!
1976 Pof.L82, PRAGA 78 2Kčs, production flaw - missing whole front part helicopter + for comparison standard stamp.; mint never hinged, sought production defect!
1979UZÁVĚRY AIRMAIL STAMPS PŘEPRAVY / PRAGUE - BRATISLAVA - KOŠICE/ 2001 / 26.IX.79, comp. 4 pcs of blank forms for mailing airmail post, for various mobile post-office (on a bus) No. 1003, 1006, 1081 and 1084; good condition