The 100th Anniversary of the International Metric Convention 1975
Zobrazujú sa: Bulharsko - Poštové známky - 1975 - The 100th Anniversary of the International Metric Convention - 1 známky.
1975
The 100th Anniversary of the International Metric Convention
21. marec WM: nikto Perforácia: 13
![[The 100th Anniversary of the International Metric Convention, typ CEP]](https://www.stampworld.com/media/catalogue/Bulgaria/Postage-stamps/CEP-s.jpg)
