Identifying antique American silver and silverplate pieces

I can usually find enough information on the internet to identify that rare piece that boggles my mind, but this one has me stumped. I imagine there may be a piece missing, an insert made of glass perhaps?

It measures approximately 9 1/4 inches in diameter, 4 1/2 inches tall, the top rim piece comes off and it has 4 designed feet.

It weighs 2 lbs. 6.2 ounces

On the bottom of the piece:

Quadruple Plate Meriden Connecticut

Wilcox Silver Mfg Corp

Pat’d July 16th, 1895

6310

8

It is also numbered 3900-7 [hand engraved]

If anyone can identify this piece, I’d appreciate your knowledge.

I would like to know the value of the piece and WHAT is it?

Thank you for your time.

~Sharon L.