Hello folks, I am new here and I have a problem I hope someone can help me solve.i became the recipient of my grandfathers 22 pistol. It’s a 22single action Herter R12 from west Germany. Upon examination I see that the Bakelite type grips have a small hole in the bottom of the grip on the left side, it looks like my grandfather may have dropped it years ago. I have did online searches for replacements but no luck. My question is are there a comparable swap options with other makes that will fit or at least need very little altering to fit. Was thinking that new heritage or perhaps the ruger 22 s would be a viable option to trade out.I would even consider rubber style grips if they could fit. I remember shooting this gun with my grandfather in the early 70,s. So lots of memories. It’s still in excellent shape and I want to use this gun to teach my 11 year old granddaughter how to shoot. Thank you in advance for any help I can receive on this question.