UNESCO Session, Varna 18 ст — Bulgaria, 1974
UNESCO Session, Varna (Bulgaria, 1974), face value 18 ст. Photo, catalogue value, details and photo identification.
- Issue date
- 1974
- Face value
- 18 ст
- Colors
- Multicolor
- Print run
- 250,000
- Yvert
- BG 2110
- Michel
- BG 2353
- Stanley Gibbons
- BG 2332
- Scott
- BG 2192