OK, so I'll admit that I'm not really that certain off the top of my head which Frankenstein movie this is from... but I'd have to guess "Ghost of Frankenstein", since in "Son of Frankenstein" the monster got knocked into a sulphur or lime pit, and here he's clearly caked in something, with Ygor having dug him up!
That's Bela Lugosi in the beard as Ygor (different character from the hunchback in the original movie, who was named Fritz... Ygor was a criminal who was hung for his crimes, but didn't die... he was instead severely injured, with his neck broken). And I'm pretty sure that's Lon Chaney, Jr. as the monster (I think he had the role until Frankenstein Meets the Wolf Man, when he had to play his previous role... and I think Lugosi played the Monster there).
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