Antique porcelain liqueur cup from Germany.  White handled cup with gold gilt interior.  Outside of this unusual cup says, How to Make Whoopee.  Marked on bottom with red double circle mark and Made in Germany.  The saying Making Whoopee became popular around 1927.  That and the backstamp Made in Germany dates it to sometime in the late 1920's through perhaps the 1930's.  This little shot cup is 1 5/8" high.  We have several available priced each.  All are in excellent condition.