I know I have shown one of these stamps before which were issued in 2009 to commemorate the 200th anniversary of the birth of Charles Darwin. However I decided to show it again with the First Class stamp from the same set.
|Great Britain - Charles Darwin|
The other jigsaw pieces in the set represented:
|Great Britain - Darwin - Zoology|
I do not have the others, but they were.
- 50p Ornithology (Finches)
- 56p Geology (Aerial view of Galapagos Islands)
- 72p Botany (Orchid)
- 81p Anthropology (Ape)
There were four more stamps of conventional (oblong) shape; two First Class showing a flightless cormorant, and a giant tortoise and a cactus finch; two at 81p of a marine iguana and a mocking bird
I'll keep and eye out for these with my market trader.
For other shapes and sizes check out those offered at Viridian's Sunday-stamps-125.