1962 Air cover: fr: Triang Fishes 5m,10m,15m & Chile Football 60m, UNESCO 60m pmk Darkhan - to Prague - b/s Ulan Baator. Gen. Use!
1967 Air cover fr 8 stamps [5 diff spacecraft, 50m Herdsman, 2 flowers pmk U. Bator - 10.8.67 - to Budapest.
1971 Air cover fr 1T Fish, & Masks 10,20,30m pmkd Ulan Bator - 71.11. 26 cds - to Pinner, Mddx
1976 Aair cover fr 6 diff Wild Animals & 40m Boots pmk U. Bator - 23 12.76 - to Budapest.
1988 Air cover fr 10 stamps incl 5 Farm Animals, etc pmk Ulan Bator to Budapest - genuine usage from young Hungarian Vol. worker
1992 Illus P.O. Greetings Cover fr: 4x 10m Panda, 2x 50m Old Bicycle - violet cds - to Derby