The 50th Anniversary of the National Association of Colleges and Schools of Engineering 2014
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2014
The 50th Anniversary of the National Association of Colleges and Schools of Engineering
22. August WM: None Sheetsize: 50 Design: Luis H. Villalpando Quezada Perforation: 13
![[The 50th Anniversary of the National Association of Colleges and Schools of Engineering, type EJU]](https://www.stampworld.com/media/catalogue/Mexico/Postage-stamps/EJU-s.jpg)
