Colnect-1668-944-Chalkboard-with-an-open-Book-and-Hammer.jpg
Source: Colnect
Issued by: Bulgaria
Function: postage
Date: 5/21/1962
Issue: Teachers' Congress 1962
Denom: 5s
Color: Prussian blue & black & yellow
Design: open book & blackboard
Watermark: unwmk
Perf: 10.25
Catalog value:



External links:
Colnect 404038..chers_Congress


Record of changes