I've looked at the pictures and it is definitely NOT a Model 700. At least not like any I have seen as the 700 did not have a top rib extension. I think it more like the Model 400 that was made up until 1946. It was made in 3 grades and I think that is a Grade 3. If Smallbore is online and you can massage him he is a better judge of such things than I and should be able to clarify. Lagopus.....