Ron Spitz
#1I a previous link about the various models of the Marlin Bottleneck I mentioned an older version with three large links, no markings on the side of the top cap, only the date marking on the top of the cap, and a different size to the bottleneck itself. Here are some pictures compared to another model. As can be seen in the picture, the key posts are missing and the lock is held in place with two pins, not screws. To account for the missing pins, the key was fitted with a solid post and works just fine. The large link models bottleneck is shorter that the newer model.
