Robert, I would love to see the back side of the locks. Then you will know if it has the firing pin interceptors as well. I love putting the locks back on. Sometimes they safety and firing pin interceptors line right up. Sometimes I must close the door so no one can hear me talking.

It does appear that not only did the bridle attachment change, but the profile of the locks seem to be slightly less rounded and possibly narrower on the rear of plate, on the early bridle attachment locks. I did notice how the name brand and city of manufacture script/lettering changes. I have Paragon 397, A 2925, B's 2112,5947,5956,6111 and Leader 98476. These all have the later locks.