Brand/Issuer: USSR postal service (Почта СССР), Ministry of Communications of the USSR (Министерство связи СССР).

Type: Official illustrated first day cover / postal stationery card commemorating 12 April Cosmonautics Day (12 апреля – День космонавтики), cancelled in Moscow on 12.04.1985.

Front cachet artwork: multicolor design showing two smiling cosmonauts in white space suits with blue trim and mission emblems waving in front of a blue launch structure labeled "СССР", with a tethered spacewalking cosmonaut at the right against a starry blue background.

Central emblem: large red pentagonal panel with a small red star at the top and a golden profile medallion of a cosmonaut in relief, surrounded by the curved Cyrillic inscription "12 АПРЕЛЯ – ДЕНЬ КОСМОНАВТИКИ".

Postage stamp: matching 15 kopeck "12 АПРЕЛЯ – ДЕНЬ КОСМОНАВТИКИ" issue affixed at lower right, repeating the cosmonaut pair, launch tower, red panel with gold profile, and spacewalker imagery, with denomination "15к", inscription "ПОЧТА СССР", and year "1985" in the right margin.

Cancellation: black Moscow Cosmonautics Day first day postmark tying the stamp, featuring a globe with latitude–longitude grid and laurel sprig, central text "ДЕНЬ КОСМОНАВТИКИ", and outer legend with place name "МОСКВА" and date "12·04·1985".

Reverse printing: cream card back with no handwriting, bearing small Cyrillic credits along the lower margin including artist "Художник Г. Н. Комлев", title "День космонавтики", copyright " Министерство связи СССР, 1985", order number "Зак. 6391", printer "МГ Гознака", print run "Тираж 20 тыс. 13.09.84", price "Цена 3 коп.", and usage note "Отправлять только в конверте."

Color: Multi-Color; Certification: Uncertified; Grade: Ungraded; Quality: Used; Type: First Day Cover; Place of Origin: Russia & Soviet Union.

Keywords: 1985 USSR Soviet Cosmonautics Day space first day cover, 12 April Day of Cosmonautics postal stationery, Moscow globe cancel, Russian space exploration topical FDC, Russia Soviet Union astronaut stamp cover.