Here's a beautiful, working Grebe MU-1 Synchrophase broadcast receiver manufactured in Richmond Hill, NY in the mid-1920's.
Condition of the radio is excellent throughout. The faux mahogany panel is close to perfect, with no scratches, no scuffs, no dull or muddy areas. Pristine lacquered brass escutcheons accent all of the dials and the vernier controls. Engraved gold lettering is legible everywhere. The chassis is pristine, with bright green wire tightly wrapped around the binocular coil forms, original metal tags on the tops of the coils, glossy bakelite surfaces everywhere, excellent original tube sockets with no cracks or chips, properly functioning B+ bypass capacitor, original audio transformers (both have good windings), metal surfaces that exhibit no rust, no corrosion -- everything is pristine.
The cabinet retains its factory finish, and it's still smooth and glossy, with scattered minor marks consistent with age and authenticity. Calibration/spec sheet on the back interior of the cabinet is in excellent condition, with no damage and no stains. Same for the wiring diagram on the underside of the base. Letter sequence on back of panel matches letter sequence on calibration sheet.
The radio includes a good set of tubes. It has been tested, and it still works. If you'd like to operate it, you'll need a good regulated power supply (I'd recommend an ARBE III), a cone or horn loudspeaker from the 1920's, a strong indoor ground connection and a longwire outdoor antenna (ham radio type -- about 120 feet long and 20 feet off of the ground). It will also help to have had some experience tuning a 1920's battery radio.
Unlike later AC radios, you don't simply plug them into the wall and turn the dial to tune a station.The radio measures approximately 23" wide by 14" deep by 12" high. Shipping weight, properly packed, will be about 45 lb.