Colnect-173-079-Spiral-wave-radiation-pattern.jpg
Source: Colnect
Issued by: Portugal
Function: postage
Date: 6/26/1974
Issue: Inauguration of Earth Stations
Denom: 4.50e
Color: multicolored
Design:
Watermark: unwmk
Perf: 14
Catalog value:


Prev: 1.50e
Next: 5.30(e)

External links:
Colnect 64996-..tation_Network