I have a friend that called today and said he'd found a model 30 in his grandmother's old house. She passed away 9 years ago and they never knew she even had a gun but found it hidden under and loose stone in the fireplace! The gun is locked up tight with rust but he says he thinks he can bring it back with alittle work. The question he asked me was when it was made. The serial number is 693372. Anybody have any information I can pass on to him? Thanks for your help. I have got to get me one of those books! lol