Bulgaria 1951 Radio Day - A.S. Popov
From Stamps of the World
- Issue Date : 10 February 1951
- Designed by : Tsv. Kosturkova, As. Anev
- Print Run : #815 x 1,000,000 / #816 x 500,000
- Print Process :
- Perforations :
- Stamp size:
- Bulgarian Catalog Numbers : 815/16
- Michel Catalog Numbers : 774/75