Colnect-172-827-Statistic-Numbers.jpg
Source: Colnect
Issued by: Portugal
Function: postage
Date: 4/11/1973
Issue: Productivity Conference '72
Denom: 4e
Color: multicolored
Design: odometer
Watermark: unwmk
Perf: 14.5
Catalog value:

In collections: some private
Prev: 1e d=graphs
Next: 9e

External links:
Colnect 64715-..ivity_Congress