Wanted: Zonophone Grand Opera / Concert Grand Crank Collar

[Rueschlikon]

hello...I recently purchased a Zonophone Grand Opera but it's missing the metal collar where the crank passes into the cabinet. I have attached a picture of the same collar from my collection. The outside diameter of the collar is about 1 ¼ inches. The outside diameter of the smaller insert is ¾". The same collar can also be found on the Zonophone Concert Grand. I would appreciate any help in locating an original collar and if available the original three screws. thanks to advise, Paul