HALLEYS COMET
1984-1986

FIRST DAY COVERS

US maxicard and stamp featuring ESA's comet probe Giotto. It was one of the five unmanned probes sent to explore Halleys comet from various countries. Giotto passed Halley's Comet on 14-March-1986 and survived being hit by some small particles. One impact sent it spinning off its stabilized spin axis so that its antenna no longer always pointed at the Earth, and importantly, its dust shield no longer protected its instruments. After 32 minutes Giotto re-stabilized itself and continued gathering science data. Another impact destroyed the Halley Multicolor Camera, but not before it took photographs of the nucleus at closest approach. After its encounter with Halley, Giotto entered hibernation and after 4 years was re-activated, making it the first spacecraft to be re-activated from hibernation mode.
This cover was issued for the Launch of the Giotto space probe on its mission to study Halley's Comet. It is cancelled for the launch on 2-July-1985.
Soviet miniature sheet first day cover featuring all five unmanned probes sent to investigate the comet from around the world. Cancelled 6-March-1986.
A second first day cover and stamp commemorating the launch on 15-December-1984 of the Soviet's Halleys comet probe.
This third cover and stamp release issued for when the probe was closest to Halleys comet 6-March-1986. The stamp is the smaller version of the miniature sheet two above.

AUTHENTICATED MEDALS

This is a Franklin Mint limited edition eye witness commemorative medal. It is made of solid sterling silver.
Franklin Mint also produced this limited edition eye witness commemorative medal for Comet Kohoutek, in 24 karat gold on sterling silver.
Here we see a large brass/bronze "Once in a life time" medal commemorating Halley's Comet.

PHILATELIC NUMISMATIC COVERS
AND SPECIAL PRESENTATIONS

These are limited edition Australian mint medal sets in first day covers commemorating Halleys comet. They are cancelled at Parks post (Parks observatory South Australia) on 11-April-1986 when the comet was at its closest to Earth. Made from 24 karat gold on bronze medals, production was limited to just 10,000 sets.
Here is another example of an Australian PNC with stamp issued for Halleys comet.
This PNC features a medal created from metal's flown in space onboard an undisclosed flight. It also features its own Giotto stamp release for the event. Production was limited to just 2,000 sets.


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