1920/30s TLM Thomas L Mott Butterfly Wing Compact.
Octagonal small shape
Stamped to base.
As you can see the image is dark & there is black spotting/tarnishing to the mirror.
I think a moist puff has been left in the compact too long, This is reflected in the low price. Wear to the plating on the case. Hinge & Clasp good.