Rank 7 centres Vostok 6 — Valentina Tereshkova's solo flight that made her the first woman to orbit Earth and still the only woman to fly a solo orbital mission. Launched 16 June 1963 from Baikonur aboard the same Vostok-K family that carried Gagarin, Tereshkova completed 48 orbits over 2 days 22 hours in an elliptical 161 × 706 km path — longer than all American Mercury missions combined at that date. OKB-1's spherical capsule returned unchanged in silhouette; the milestone was human. The plate's split-manifesto layout, magenta orbital arc, and dense right-column archive capture International Space constructivist grammar — profile monument camera, linocut woodblock craft, manifesto-rail text embodiment. Curator copy ties Tereshkova to the 1963 dual-flight Vostok 5/6 program and the broader Soviet lead in early crewed milestones before Gemini closed the gap.