StampData
Stamp catalog
Lists
Joint Issues
Sheets
Notes
Albums
Collections
Catalogs
Things
Tools
Statistics
Quiz
Login
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
