Bulgaria 1969 Silkworm-breeding
From Stamps of the World
- Issue Date: 30 January 1969
- Designed by: St. Goristanova, Vl. Korenev
- Print Run : #1930 x 3,000,000 / #1931 x 2,000,000 / #1932 x 700,000 / #1933 x 400,000 / #1934-1935 x 220,000
- Print Process:
- Perforations:
- Stamp Size:
- Bulgarian Catalog Numbers : 1930/35
- Michel Catalog Numbers : 1865/70
