CCCP-21142 Second prototype of the world largest helicopter. In February 1969, test pilot V. P. Koloshenko flew this prototype to 2255m with payload of 40'204 kg. ASCC reporting name "Homer". (more of CCCP-21142)
CCCP-77106 (cn 04-1) Supersonic Tu-144 - 'Soviet Concorde' - at Monino museum. This particular plane was build in 1975 and in half a year it made first for Tu-144 operational flight from Moscow to Alma-Ata. Was used as freighter. (more of CCCP-77106)
101 Another name of the project - Su-100. First flight at 1972. After 10 flights program was stopped due strong negative reflection of Soviet authorities. There is suspicion of Tupolev's influence on this desision. BTW - if you'd look at Tu-144 - many similarities.