Quote:The frame width varies from .985-.995".
Scott,
The ~1.000" frame width is correct for the 044 1/2 (as well as for the 56 Ladies model). The factory Stevens 44 1/2 is about 1.125" wide across the frame, with some reproductions being even wider to allow for a larger than factory barrel shank.
As j pickup says, the breech block is narrower than the 44 1/2, and so is the lever where it fits into the 044 1/2 frame.
It's possible that the shorter length of pull was due to a special order rifle for a youngster, as the 044 1/2 English model had a lighter overall weight like the 56, and would have been a nice step up above a Favorite for an older youth.
The barrel was sometimes referred to as a rapid taper. You didn't provide the barrel dimensions (across the flats, dia of round at the transition, and dia of round at the muzzle), but if you will do so, I'll compare them with my 25-25 barrel as soon as I can dig it out of the hole.
On the rear sight, I have better luck identifying them from a top-down view, so I'm just not sure about yours.
BP