Yeah, the Milton Lash. Note the bracket hardware wrap-arounds which appear to be a force-fit, no piercing of the shell required. The rest of the brass hardware sticks out, the bolts at a crazy angle, would tend to get caught in your shirt. But given how well the shell has held it's round shape, and the quality of the neck it appears the construction is quite sound. In my other views a sturdy perch pole shows. The bracket detail show really nice brass work.
The backside of the skin is marked with " Sargeant Lash 47 (unreadable) NYH Arty 1860"