You should be able to consult a reputable clock repair shop as to getting a brief description of the piece (s) in question. To assist them, please make note of any Manufacturer's markings of the face or back or internally (within the case). Familurize yourself with the various terms to describe the casing, movements, mechanisms (wind-up vs pendulum, etc) This has all been pretty basic and simple but a little knowledge will help over blind luck. Best wishes!!