21-3/8" outer diameter, 22-5/8" high, with 10-5/8" height from top of metal belt till top of bowl, and 11-1/8" height from base till bottom of belt. Belt is 1-1/16" wide. As apparent in pictures, this bowl has rust, but the rest of the bowl has the hue of stainless steel instead of tinplate, so this mixer bowl may have started out as stainless steel but grown rusty with time and abuse.
We tested this bowl for leakage by spilling sufficient water inside to cover the dent (seen in above picture inside the bowl), and found no water beneath the bowl, so the dent, it seems, is a dent and nothing more.