Antique Marble Table Lamp

I have little to no knowledge of this lamp. I acquired it from an estate that I cleaned out around 2001-2002. The individual that had previously owned it was born in 1897 and there were a lot of items from the 50’s and 60’s in the estate. It has ITALY engraved on the bottom of the lamp. The coloration is light green and rusty brown. Any information you can provide on it would be appreciated.