Studying page 126 of C&B's book is pretty illuminating. The later centerfire varient is probably the sidelever mechanism mine employs, but the fences are very different (sounds bad but... it has "balls" & a cove around the nipples). The earlier pinfire gun has a somewhat different sidelever system but employs the same, more-abrupt, standing breach and thin fences. Mine falls somewhere in the middle I suppose. From reading into said book, my lock-up would likely be the later swing-arm design, but when the authors discuss it in the next chapter it is unclear as who designed it and when. It does seem likely that my gun started life as a pinfire but.....I just couldn't tell from my initial examinations of it. I should have it in hand in a week or two and I'll go from there.
![[Linked Image from i.imgur.com]](http://i.imgur.com/fuZMvAdh.jpg)
The serial number on this gun is 3093, which in the Lang serial number record clearly dates it to 1866.
