Jim, you should call Leland Colligan. He's been restoring a bunch of old Globe, Sterling and Monarchs. He even has some of the original unused trimmings. Some looked to be made of a leather textured tape with white tape trim and others a sort of paper material. He's got all kinds of cool stuff from these old accordions. Original reeds, bellows, even the old segmented bellows, blocks, frames, etc. He even let me play on his own personal Sterling (D) accordion that's fully original. That was a very cool experience! Shoot me an email if you want his number.