Old Bass ID

[Adam Linz]

www.photobucket.com/adamlinz Hey everyone; This bass was found in a sax repair shop in Minnesota by a friend of mine. It will hopefully go into restoration soon. I'm showing it for him cause he's a little shy of all you guys. He's a great sax player and good bass player. I know, they are always invading our turf! Was looking for any help as to what we got here. There is an unusual typed label on the inside with a lot of info. Also a pencil mark that reads:

Highland Park Michigan 1914
Gift from Gus Mann, repaired by L.R. Mathews Los Angeles, CA 1988

Another repair label reads:
Repaired by Gustav L. Mann 1914 Detroit, MI

The measurements are on the type-written label on the inside. They are pretty accurate to the bass now. Photos below via photobucket. Thanks for any help or advice. Looks old, sounds old, is old?
www.photobucket.com/adamlinz click old bass