Colnect-2956-460-First-International-Congress-of-Electric-Communications-and-.jpg
Source: Colnect
Issued by: Mexico
Function: airmail
Date: 10/7/1974
Issue: 1st International Electrical and Electronic Communications Congress
Denom: 2p
Color: multicolored
Design:
Watermark: MEX & eagle
Perf: 14
Catalog value:



External links:
Colnect 461758..nications_and_