Postal Stationery: Bird feather (Poland 1967)
Bird feather (Poland 1967)
12 August (Poland ) within release Bird feather goes into circulation Postal Stationery Bird feather face value 3.60 Polish złoty
| Postal Stationery Bird feather in catalogues | |
|---|---|
| Polish Stamps Catalog (Fischer): | Pol:PL CK 45 IV |
Postal Stationery is square format.
I 1968Also in the issue Bird feather:
- Postal Stationery - Bird feather face value 3.60;
- Postal Stationery - Bird feather face value 3.60;
- Postal Stationery - Bird feather face value 3.60;
- Postal Stationery - Bird feather face value 3.60;
- Postal Stationery - Bird feather face value 3.60;
- Postal Stationery - Bird feather face value 3.60;
Postal Stationery Bird feather it reflects the thematic directions:
Feathers are epidermal growths that form a distinctive outer covering, or plumage, on both avian (bird) and some non-avian dinosaurs and other archosaurs. They are the most complex integumentary structures found in vertebratesand a premier example of a complex evolutionary novelty.They are among the characteristics that distinguish the extant birds from other living groups
