Blood from the Mummy's Tomb (1971)

Directed by Seth Holt

Aside from a few decent scenes with lots of heavy atmosphere this is a fairly dull murder mystery plot.  It's essentially a vehicle for Valerie Leon to lend her *ahem* attributes.  Interestingly enough, she had been one of the actresses considered to play Vampirella before that project folded and Hammer Studios along with it.