1971 Pof.1876, 2x the bottom str-of-5 with margin and change in/at sorting color joined printing. ledges, optically cleared paper, date of print 20.1.75, mint never hinged.
1972 Pof.1961 with plate variety 3 (2x), plate variety 11, 20 and 21 (exp. Gilbert). Pof.1962 with plate variety 1 and 2x in addition without plate variety. never hinged.
1974 - 1975 Pof.2090xa on paper without opticaly clearing agent, c.v.. 900CZK. Pof.2082 with plate variety 9/2 line by leg. Pof.2088 with plate variety 4/1 line below small frame. Pof.2128 with plate variety 22/2 line through B. Pof.2181 with plate variety 31/2 interrupted yellow arc. never hinged.
1975 Pof.2134 vertical pair with plate variety 21/2 line below "lé". Pof.2164xa on paper without opticaly clearing agent, 1x pair with margin and 1x individual., mint never hinged.
1976 Pof.2206 and 2207 LR corner blk-of-4 with margin. Pof.2206 with plate variety 20/2 vertical guideline above "to" and Pof.2207 with plate variety 20/1 smudge below "to", mint never hinged.
1978 selection of plate variety on stmp Pof.2296-2297, Common Space Flight Czechoslovakia–USSR, Pof.2296 plate variety 1/1 (2x), plate variety 8/1 (2x), plate variety 10/2 (3x), Pof.2297 plate variety 8/1 and plate variety 10/2, various combinations with stamps without plate variety
1978 - 1979 Pof.2346xa with plate variety 8/2 oblique guideline in/at O, Pof.2352, UL block of four with margin and emblem TÚS (Technical Services) and plate variety 1/2 line below Field, Pof.2368 right upper pair with margin and emblem TÚS (Technical Services) and plate variety 9/2 red line above 4, No. 2352 and 2368 damaged fluorescence bad cellophane
1979 Pof.2375, 30 Years of Research Work in Communications, LL block of four with margin and emblem TÚS (Technical Services) and with plate variety 92/1 double transfer Pof.2387 as Pr and str-of-3 with plate variety 28/1 line in chimney below star, mint never hinged.
1979 - 1980 Pof.2398yb - 2399yb in pairs on paper fluorescent paper No.2, c.v.. 1800CZK. Pof.2399 with plate variety rabbet in R margin Pof.2422 as blk-of-4 with plate variety 40/1 missing blue color after/behind head 3 runner. U stamps with fluorescent paper No.1 damaged fluorescence bad cellophane.
1980 Pof.2421 as Pr with plate variety 22/1 line in cover. 2x Pof.2433 with plate variety 8/1 cut "with" and plate variety 25/1 deformed wedge [ ˇ ], mint never hinged.
1980 - 1982 Pof.2459 as blk-of-4 with margin and plate variety 61/2 prohnutí in flag, Pof.2488 with plate variety 24/2 line after/behind "é", Pof.2524yb on paper fluorescent paper No.2, Pof.2521-2523 on/for papers fluorescent paper No.2, fluorescent paper No.1 and fluorescent paper No.1, Pof.2534yb as Pr on paper fluorescent paper No.2, stamps on paper fluorescent paper No.1 have damaged fluorescenci bad cellophane
1981 Pof.2486/I. as blk-of-4 with margin and part/-s number in/at brick red color, c.v.. 4000CZK, mint never hinged; Pof.2485-2487 with plate variety 8/2 by/on/at No. 2487 (red line lower)
