Phenix Phonograph intermediate cylinder size

[Sidewinder]

I think there was a discussion about the slightly different sized cylinders a while back. I was fortunate to find a Phenix machine with a Pathé adaptor. As you see, the adaptor allows the slightly larger Pathé inter cylindrs to be played on this machine.

[Mormon S]

Wow! That adaptor is super rare, congrats! It turns an otherwise hardly usable machine to a good working machine for salon cylinders. Does the rim of the adaptor have a “J” and “Z” stamped on it?