1940s or 50s vintage cash box with drawer handle, till tray insert. The box measures 10" x 4 1/2" x 3 1/4" tall over the exterior.
This is made to lock though we have no key (it's probably a very simple key, one of those locks you can pick open with a hairpin!).
The original green paint is worn, but this is a good, fairly heavy steel and it looks fine, no rusting.