Mexico - 20th International Geological Congress issue (#115698)

20th International Geological Congress issue of Mexico

Short desc: 20th International Geological Congress

Issuer: Mexico
Date: 9/4/1956
Occasion: International Geological Congress / 20th International Geological Congress

Consists of 1 stamp: (See stamps as list)

50c dkvio

All are airmail wmk=MEX-MEX & eagle perf=14