Colnect-505-511-Agriculture-and-Science.jpg
Source: Colnect
Issued by: Czechoslovakia
Function: postage
Date: 1920
Issue: 1920a
Denom: 500h
Color: green
Design: agriculture & science
Watermark: unwmk
Perf: 13.75
Catalog value:

In collections: used (Stan Shebs)
Prev: 400h brn
Next: 600h vio

External links:
Colnect 150054..re_and_Science