Appreciate the info. I have descent grips on my OP, these were just a little better..I believe they are for New Service with a round butt such as the shooting master and most 38 special New Service revolvers. I have a pair of pre-war official police wood stocks. The left is excellent but the right side was worn and someone appears to try and recut the checkering by novice means. I am leaving out of town until wendsday and I can then send you a pic if your interested.