In the scene where Kharis trashes the Scrips Museum, Lon Chaney drove his fist through real glass, and a shard of it flew up and cut him through his mummy mask in his chin. In this scene, Kharis can be seen bleeding, and it's real blood.
Part of the original SHOCK THEATER package of 52 Universal titles released to television in 1957, followed a year later with SON OF SHOCK, which added 21 more features.
Second of Lon Chaney's three MUMMY features, filmed from August 23-September 1, 1943, but not released until June 30, 1944 (copyrighted 1943) .
This is one of a very few Universal Horror Classics where the female lead doesn't survive the film.