Colnect-2660-264-Aqueduct-Tepotzotlan.jpg
Source: Colnect
Issued by: Mexico
Function: postage
Date: 7/1/1974
Issue: National Engineers' Day
Denom: 40c
Color:
Design:
Watermark: MEX & eagle
Perf:
Catalog value:

In collections: unused (Stan Shebs)

External links:
Colnect 536696..s%E2%80%99_Day