The 40th Anniversary of National Polytechnic Institute 1976
Now showing: Mexico - Postage stamps - 1976 - The 40th Anniversary of National Polytechnic Institute - 1 stamps.
1976
The 40th Anniversary of National Polytechnic Institute
28. October WM: None Sheetsize: 25 Design: H. Rodriguez Perforation: 14 x 14½
![[The 40th Anniversary of National Polytechnic Institute, type BBK]](https://www.stampworld.com/media/catalogue/Mexico/Postage-stamps/BBK-s.jpg)
