I posted a thread a few days ago to help me identify this drum I found. Based on the helpful answers I got and my own research, the drum is a Ludwig Jazz Festival snare drum produced between 1960-1963. It was pretty grungy when I found it and the original blue sparkle wrap was covered in some sort of black vinyl. I am in the process of cleaning and restoring this drum to its former glory! I'm having a lot of fun with this project and I'll post pics as I go along. Here are the pictures of the drum as I found it.
Completed project pictures on page 3!! Plus before and after pics.
This drum has a 5.5" deep shell while the Jazz Festival is listed with a 5" shell but according to the vintage drum guide there were some early Jazz Festivals produced with older 5.5" shells the factory was using up. I still can't figure out why there are extra holes under the strainer but perhaps it will remain a mystery.