White Nights

 Official Postcrossing card RU-400413 with many thanks to Alexey :)

Didysis figmedis. Sri Lanka

 Official Postcrossing card BY-169779 with many thanks to Polina!

Ouro Preto

 Official Postcrossing card BR-148360 with many thanks to Cecilia!

Inge Look

 Official Postcrossing card FI-1062698 with many thanks to Minna!

Amsterdam

Official Postcrossing card NL-613614 with many thanks to Andrea!

Levitan

Official Postcrossing card RU-369655 with many thanks to Alena!

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!