Join Date: Jul 2010
Location: St. Louis, MO area.
Well, here are a couple pics of locks on two of my Jazails. One is a Barnett pattern, the other a Wilson pattern. Notice the hearts and names on different locations on the lockplates. Note the quality of the engravings/stampings.
As to when, where, etc. the different hearts ID's were used and the locations on the lockplates, you almost need Harding's book to find out. I hope another Forum member might have the reference material to give you a better idea.
But if the mark is spurios, it could have simply been crudely copied at most any point in time. And was so common on these guns.