What type of Vitro? One of those "Anacortes"? (not that I still really know what that is - LOL!) And I thot #3 mite be a pelt; but, dang, don't think it would fare too awfully well on Ebay.
A no-named vitro. Anacortes vitro just refers to vitros made in Anacortes, Washington. I think they were there for only 2 or 3 years. The rest of the time Vitro has made marbles in West Virginia.