Bulgaria 1974 Centenary of Universal Postal Union
From Stamps of the World
- Issue Date : 5th August 1974
- Designed by : K. Kanchev and P. Rashkov
- Printed by :
- Print Process : Photogravure
- Perforations : 13.5 x 13
- Size: 29 x 39 mm
Miniature Sheet
First Day Cover