Colnect-184-207-Belgian-Scientists-Leo-H-Baekeland.jpg
Source: Colnect
Issued by: Belgium
Function: semipostal
Date: 10/22/1955
Issue: Belgian scientists 1955
Denom: 2fr+50c
Color: carmine
Design: L.H. Baekeland
Watermark: unwmk
Perf: 11.5
Catalog value:



External links:
Colnect 78508-..land-Inventors