If you ordered the Olympic Gold Medal subscription and have not received a letter from Royal Mail Edinburgh do not order Paralympic Gold Medal stamps yet as there will be a special deal for previous subscribers. See this post.
Giotto in 1986 flyby of Halley's Comet
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Giotto was a spacecraft mission in 1986 to flyby and study Halley's Comet.
The primary subcontractor was British Aerospace based in Filton, Bristol.
A ...