Very early production restored pressure operated Gem Roller Organ. Two different diameter round pallet valves were used on early pressure models, larger on the top and smaller on the bottom. This was changed to a single oval shaped valve when the organette's became vacuum operated later in production. For roller organ or organette restoration visit: www.organetterepair.com.
Die Wacht am Rhein!
Klaasklinkert 2 months ago