Steuben "Stars and Stripes" prism was a limited production piece designed to commemorate the U.S. Bicentennial.  It was produced from January of 1976 through  February of 1977.  It is a cut crystal tetrahedron with the stars and stripes etched on the piece.  It is 3x3x3 and has one scratch that is or is not noticeable depending on how it is displayed. Includes gray Steuben bag.