The Blue Book lists the Sears Model 101.100 (without the A on it) as a Savage Model 96/96Y. Numrich's on-line parts list identifies the Savage, Fox, Springfield, and Stevens 96 as being all the same gun. There probably were differences in finish, but parts are interchangeable. http://www.e-gunparts.com/products.asp? ... 89Zz96&MC=
Numrich's printed book of parts is a little different - it lists the Stevens Model 95 with the note that the parts list also applies to Savage M-96 & Sears 101.100. I guess the 95 and 96 were basically the same thing, close enough for parts interchange.
The Numrich web site has a diagram of the Stevens 95. Take a look to confirm that it is the same gun as yours. http://www.e-gunparts.com/productschem. ... el=089Zz95
The Blue Book does not give values for any of these models. In the Serialization appendix, it does not list the Savage 96 at all, but does list the Stevens 95 as made 1926-35 (55,000 made) and the Stevens 96 made 1926-33 (3,500 made).
I would guess that the value would be in the range of $50-125, depending on condition.