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- Source is exactly "The C. E. Roy U.S. Naval Aviation Photograph Album (2009-02-19), Folder 2"
[Diploma issued by the National Radio Institute to C. E. Roy, March 30, 1926]
![[Diploma issued by the National Radio Institute to C. E. Roy, March 30, 1926]](https://digitalcollections.museumofflight.org/files/square_thumbnails/b24d3a6dddb239c0a1907e54fc61ee2f.jpg "[Diploma issued by the National Radio Institute to C. E. Roy, March 30, 1926]")
Diploma issued by the National Radio Institute to C. E. Roy, March 30, 1926. Certifies that Roy is a Certified Radiotrician. This certificate was originally folded inside the album; a copy is included in original album location.