Salyut-1d2
Internal layout of the Salyut-1 orbital station: (1) Rendezvous system antennae, (2) Solar panels, (3) Radio-telemetry systems antennae, (4) Portholes, (5) Orion stellar telescope, (6) Air regeneration system, (7) Movie camera, (8) Photo camera, (9) Biological research equipment, (10) Food refrigerator, (11) Attitude control jets, (12) Propellant tanks, (13) Micrometeorite sensor, (14) Running track, (15) Working table, (16) Central control post, (17) Pressurization system propellant tanks, (18) Cosmonauts visor, (19) Soyuz spacecraft propulsion system.