Leonardo da Vinci's "Ornithopter", 1490 1 ៛ — Cambodia, 1987
Leonardo da Vinci's "Ornithopter", 1490 (Cambodia, 1987), face value 1 ៛, “Experimental Aircraft Designs” series. Photo, catalogue value, details and photo…
- Series
- Experimental Aircraft Designs
- Issue date
- 1987
- Face value
- 1 ៛
- Colors
- Multicolor
- Yvert
- KH 747
- Michel
- KH 878
- Stanley Gibbons
- KH 834
- Scott
- KH 800