Hi up for sale here is a SET OF 4 VINTAGE INDIANA GLASS HOBNAIL DIAMONDS BLACK MILK GLASS GOTHIC WITCHY LARGE CUPS.  Wow, what a set!  Measures 3 3/4" talll approximately by large 3" wide.  Very deep black, so black that holding it up to a light bulb you can barely see it.  Really black.  They have diamond cut hobnails that protrude from the sides and top, giving it a spiky appearance.  I have come across very little black milk glass in the over 30 years I have in this business.  Pattern on bottom of them is indicative of Indiana glass.  If you have a gothic or witchy theme, these would accent it really well!  I also have matching goblets and a pitcher I am selling in separate auctions.  Choose the cups or goblets, whichever is right for you, just check my other auctions.  Email with questions and thanks for looking!