This black blown cordial goblet was made at the Tiffin glass factory for American Manor between 1969 and 1979. American Manor was subsidiary of Tiffin's parent company at the time, Interpace. It's stemware line number 17703, pattern name Ebony. The cordial is 4-1/2 inches tall and holds 2 ounces. In perfect condition. When held to bright light, the color is a deep, dark purple - black amethyst.