It may have a protective coating of some sort, probably applied when it was made. There is an engraved "Massie" on top of lid and along the edges of "Massie" there appears to be a shadow of a coating.
Lid is marked on edge "Sterling (Crown Symbol) 925 1000". Listing and template services provided by inkFrog. The item "Antique Victorian Era Cut Glass & Sterling Silver Cigar Humidor Jar" is in sale since Wednesday, April 1, 2020. This item is in the category "Pottery & Glass\Glass\Glassware\Cut Glass\American Brilliant".llllll" and is located in Zionsville, Indiana.
This item can be shipped to United States, all countries in Europe, Canada, Japan, Australia.