Poland  1970
Luna 16
1970Poland2021.jpg
The Luna 16 upper stage leaving the Moon and returning to Earth after having grabbed a handful of lunar soil. This stamp was also issued in a commemorative sheet of eight, below, with additional non-postal labels at each end depicting the launch of Luna 16 and the landing on Earth of the sample capsule under parachutes.

Stanley Gibbons catalogue number:
2021

The sheet has no SG number.
1970Poland Luna16 sheet.jpg