1922, Philately for the Children, inverted black overprint on imperforated 1k orange with kiss double impression, second printing, position 5 of not inverted setting, full OG, NH, VF and scarce, Soviet Philatelic guarantee hs, Est. $500-$600 (Image)

1923, Philately for the Labor, bronze surcharge with spaced date ''1 923'' 4r+4r on 5000r violet, full OG, LH, VF, expert's sign on reverse, Est. $250-$300 (Image)