Thanks. The grips are not Excaliber. I got them here: http://www.gungear.com/ . The were a perfect fit. If you order from them, make sure that you have them send the correct screw. The screw that comes on the gun is too short for these grips. On a positive note, when I informed them of the mixup, they sent the right screw out asap.
Also, make sure that they know if your gun is PPK vs PPK/S, S&W vs Interarms.