You did not check any search criteria, so I am displaying ALL the covers:
Number of cover matching : 10668 Page 356 /889
more info
ref
space event
date
ba 473
VEGA 2 (PROBE) 5 VK #2 - HALLEY S COMET FLYBY - PROTON-K BLOK-D1 03/10/1986 11,-
USA 2104 C
STS 51 L (CHALLENGER) - TDRS 2 (SATELLITE) - ALL SEVEN ASTRONAUTS KILLED - DISASTER 03/12/1986 8,-
USA 2107 A
GIOTTO (PROBE) - HALLEY’s COMET - ENCOUNTER AT PERIHELION 03/13/1986 8,-
K 294
GIOTTO (PROBE) - HALLEY’s COMET - ENCOUNTER AT PERIHELION 03/13/1986 6,-
USA 2108
GIOTTO (PROBE) - HALLEY’s COMET - ENCOUNTER AT PERIHELION 03/13/1986 8,-
K 292 L
GIOTTO (PROBE) - HALLEY’s COMET - ENCOUNTER AT PERIHELION 03/13/1986 12,-
K 295
GIOTTO (PROBE) - HALLEY’s COMET - ENCOUNTER AT PERIHELION 03/13/1986 10,-
USA 2107
HALLEY’s COMET 03/13/1986 12,-
K 296
GIOTTO (PROBE) - HALLEY’s COMET - ENCOUNTER AT PERIHELION 03/13/1986 144,83
ba 474
SOYUZ T-15 - KIZIM, SOLOVYOV - MISSION TO MIR AND SALYUT - SOYUZ-U 03/13/1986 17,-
ba 474 B
SOYUZ T-15 - KIZIM, SOLOVYOV - MISSION TO MIR AND SALYUT - SOYUZ-U 03/13/1986 1 050,-
ba 29257 Z
MIR EXPEDITION 1 & SALYUT 7 EXPEDITION 10 - SOYUZ T 15 - KIZIM & SOLOVYOV 03/13/1986 50,-