Y.A.Gagarin Cosmonaut Training Center Cover Letter (envelope) from flight archives of Soviet cosmonaut Gennady Manakov.Signed on board MIR by crew: mission commander G.Manakov and flight engineer G.Strekalov
August 3, 1990-December 7, 1990 131 days flown aboard aboard Soyuz TM-10 and Soviet space station MIR. 
MIR Hand stamp cancellation.