Dear Forumites, I recently was fortunate enough to acquire a pre model 21. Unfortunately, a previous owner filed on the front sight. I was thinking of having it reconfigured to the original half moon shape. Would one of you who owns one of these fine revolvers provide me with a tracing or the dimensions of the front sight so that whoever I find to restore it will have something to use as a template? I would also appreciate any recommendations for a craftsman who would be capable of doing this work if you have had similar work done on your firearms. Thank you!