UMC being Union Metallic Cartridge. Doubt it has much value. Looks incomplete. Just a guess though.
The steel liners was literally water proofing.
No W's. library.la84.org/SportsLibrary/SportingLife/1911/VOL_57_NO_02/SL5702023.PDF
You could rummage around here too. Add the W's. .cartridge-corner.com/welcome.htm