Bulgaria 1977 Airmail - The 85th Anniversary of the International Fair in Plovdiv
From Stamps of the World
- Issue Date : 3 September 1977
- Designed by : S. Kamenov
- Print Run : 250,000
- Print Process :
- Perforations : 13:13¼
- Bulgarian Catalog Number : 2689
- Michel Catalog Number : 2632
