I’m new to player piano ownership. I’m wanting to know what resources are out there to give me history on my Adam Schaaf 21N

Also. How do you know what size paper rolls to use?

I’m so excited!!

Hi Sonja, congratulations on your piano. There isn't a lot of posts here on old player pianos. I would suggest you try the Mechanical Music Digest site, or the Player Piano Talk or Player Piano Enthusiast groups on Facebook. You will get a lot more responses there. Best wishes!