2.75" with outer edge of silvering turned black but center 90% still silvered and reflective. Real photo, no maker, shows ref between the two as they touch gloves. Far right is fourth man in a suit. Left and right ends are slightly concave compared to center surface and there is light general surface wear in reflected light. Full gloss and VF. One of the very few oval boxing mirrors. Only one known to us. Paul Muchinsky Collection book photo example #105.