I just wanted to say thank you for being around. My 87 year old father had taken apart his Grandfather's gun some 20 years ago to clean it up. I rescued the cans of parts and pieces before someone threw the away. I have been restoring it for him for Christmas and your site has been so helpful it this task. It is old and well used in it's prime and will probably be just mounted on the wall for him to look at. But again, thank you so much for the resources. PS it was pat. pend. 1873 serial number 327... Kathy