Antique 1921 Art Deco Little Black Sambo Clock Electric Works Great For Sale

I purchased this last year at a estate sale . The gentleman that passed was a clock repair man . It works great. Wife told me it was one of his last restoring projects. Measurements in photo. Glass is Convex. I think the glass should come out and be cleaned again. The clock still keeps great time and doesn't stall. It is electric. I do not know who makes it.