Hello, just read your post thread and decided to register for this forum.

My Dad had a Fannin years and years ago, sounded great. I am almost positive he said they were made by Hofner, you might want to start there

My dad sold his Fannin when my parents got a divorce back in the mid late 80’s. I think he sold it down in toledo ohio but not sure. wish I could find that guitar. His had a black hard case with plush blue lining.

Hopes this helps a little. Good luck…Jaime