A used, Vintage Moviola 4 track film Synchronizer with counter for 16mm film.
Manufacturer: Moviola Manufacturing Co.
Model number: SZ D
Stampings in casting, on bottom read: M2500, and M5
One Manufacturer tag is partially gone.
Counter works, and resets. Everything rotates, latches work.
Pictures are part of the description.
Price is based on local pickup, but can ship also.
Any questions, or doubts, just ask.