Beautiful lead crystal desk clock by ANNA HUTTE BLEIKRISTALL- West Germany.  This item is in great condition but there is no battery in the clock so I do not know if it works, I don't have a battery that will work in this.   This is a very pretty mid century modern type of desk clock, and the clock interior can be replaced - it just fits into an opening in the glass.  The glass piece is 5.5" wide, 3.5" tall and 1.5" thick.   Great collector's piece.