From my research, I believe this to be a very early example of an Oswald rolling eye clock. However, there is no brand marking on the clock, just the patent location U. And date of Aug 31, 1926, along with the words In- U. The clock is 6″ in height and 6″ in length. This clock has its original screws but is missing the winding key. The other knob on the back turns smoothly and adjusts the dog’s right eye. I could not get the clock to wind, but I didn’t want to risk breaking or damaging anything on the antique clock, and suggests that this clock be serviced by a professional to return it to full functionality.