Here is an ORIGINAL pair of NICKEL-PLATED end caps from a national cash register. The caps really shine. The caps hold glass up to 3 1/8" wide and the screw holes are about 2 1/16" from center to center. These caps are good for many registers.  Any questions just ask.  I have hundreds of parts available so if there is something you need send me a email and if I have it I can list it for you.