1932 -33, 15k and 35k, 30k/15k and 70/35k, 21 mint stamps altogether, including complete set of three in blocks of four with both 35k (MNH), mainly full OG (a few stampsregummed), NH or LH, F/VF (Image)

1932, 15k brownish black and 35k ultra, complete set in unfolded blocks of four, both with perforation 12 1/2, the last one has bottom right corner margin, full OG, NH, VF (Image)

1932, souvenir postcard ''Best Wishes from All-Union Philatelic Exhibition'' with text in dark blue, bearing complete set of two stamps and tied by ''23.12.32'' (15k) and ''3.1.33'' (35k) Exhibition postal markings, nice quality with just slight traces of paper mounts on reverse, VF (Image)

1934, Exhibition stamp of 35k ultra used on Pioneer Flight cover from Moscow to Berlin together with three other commemorative values from the period, tied by Moscow ''16.7.34'' date stamp, Berlin Luftpostamt red marking on front and arrival ''17.7.34'' hs on reverse, light vertical fold away from the stamps, mainly F/VF (Image)

1932, trial color perforated (11 1/2) proof of 35k in gray olive, a part of Russian letters ''K'' and ''T'' of ''Project'' red overprint at the bottom, printed on watermarked paper, no gum (removed from a presentation card), nice and fresh quality, VF and scarce (Image)

1932, Moscow Philatelic Exhibition, 15k brown black and 35k ultra, souvenir sheet of four values, printed in thick paper, size 168x119mm, we mention slightly rounded corners and minimal paper wave at left, well above average quality item, no gum as produced, NH, VF and rare, only 500 such sheets were produced, many of those were destroyed (Image)

1933, red surcharge 30k on 15k brownish black, a dot instead of comma after ''Leningrad'' variety of surcharge (position 66), full OG, VLH (appearing NH), VF (Image)