Dug this odd shape cobalt one today

[Caretaker maine]

never seen this one was wondering the purpose and the age, thanks

 

[woody]

I believe it held talcum powder.

 

[kastoo]

What's the bottom look like? Is it abm or BIM? Some of those screws are 1905ish....that looks like one it having those wide spread threads..probably had a zinc top.