vintage brass and glass pill capsule on key ring

Description

vintage brass and glass pill container on key ring.
vintage brass circular pill container. has a glass lid. i would guess they would maybe hold it to their finger or stick it to their car key loop?
it’s half an inch deep so you could hold a few little pills in there.
glass top is personal with no scratches or cloudiness. back has a bit of tarnishing.
hinge works smoothly and the latch is very, very tight. i had trouble opening it at fist but with more movement it has loosened up a bit but it’s still very tightly closes, nothing is coming out no matter how hard it swings around!