Vintage Art Deco 800 BC Silver Cigarette Case German Engine Turned

Description

Older cigarette case. Features lovely engine turned design. Measures approx 3 1/4 inches by 2 1/4 inches. The mechanism works well, it opens by pressing the tab in, and it closed by snapping shut. The hinge works well.  I tried to decipher the engravings. Outside has T M, inside has what looks like 800, crown symbol, B C.  See pics.