Re: rudall carte
This is a very intersting old thread. Thanks for bringing it forward from 8 years ago. Rudall Carte was a known flute producer. This early ancient sax is definitely a stencil, made either by the Adolph Sax operation, that later became Selmer. Or made by Buffet. These ancient horns, keyed to low B and with minimal keywork, are fun to break down and rebuild. Your example of keys does not seems to be complete. I assume those not pictured are still on the body tube or you are in the process of putting it back together. I have a couple examples that I have had soaking in penetrant for a few years myself. No rush to get them playing.
Nice post. Keep us up to date on the refurbishing progress.