First Flight

 With many thanks to?..

Nuclear-powered ice-breaker "Lenin"

 With so many thanks to Sofya!

Nuclear-powered ice-breaker "Russia"

With many thanks to Sofya!

Gagarin card and envelope

 With many thanks to natalya108!

Gagarin Special Cancellation

 With many thanks to Larisa!

Gagarin

Sent in envelope from Novosibirsk - with many thanks to?..

Back to Earth

With many thanks to Klaff!

50th Anniversary US manned space flight

 With many thanks to Oleg!

Yuri Gagarin

 With many thanks to Julykus!

Ufa Space Special Cancellation

 With many thanks to goldenbat!

Gagarin Maxicard

With many thanks to matseevski!

Space will serve people!

 With many thanks to Paultry!

Andrey Plotnov, Yuri Gagarin

 With many thanks to RRRapunzel!

Kaluga Space Special Cancellation

 With many thanks to matseevski!

Zheleznogorsk Space Special Cancellation

 With many thanks to sofya_churuksay!

Orenburg Space Special Cancellation

 With many thanks to julasha!

Yuri Gagarin

 With many thanks to katzk!

Sputnik of friendship and cooperation

 With many thanks to cross_border!

Soyuz - Apollo

 Postcrossing Official card RU-384884 with many thanks to goldenbat, our forum member!

Shorshely

With many thanks to natalya108!