Three dimensional opening haunted house charm, approximately 5/8"x 5/8" x 1/2". It weighs 8.8 g, and is marked SILVER and 925 on the interior.
The house opens to reveal a spooky ghost inside! It closes and stays closed. The attached jump ring looks newer.
This belonged to my great aunt, and I remember it from the 70's, when I thought it was the coolest thing ever for Halloween (she would not let me borrow it...). My aunt collected Nuvo, Chim and other mechanical or movable charms, but I cannot verify the maker for this charm.
Sterling Silver Haunted House Charm - Opens with Ghost Inside