1978 Sc 4778-4779. Orbital complex “Salyut-6” – “Soyuz”. Scott 4663-4664a

1978. Orbital complex “Salyut-6” – “Soyuz”.
Catalogs: Scott 4663-4664a, Standard Collection 4778-4779, Michel 4728-4729Zf.
Issued on: 1978-06-15.
Perforation: 12 x 12¼.
Format: Se-tenant.
Printing: Photogravure
Colors: Multicolor
Face value: 4*15 Russian kopek