Thought I’d clear up a little confusion about the Model 400 and Model 500. Here is the Model 400, also known as the Proprietary Model. It was made from 1900 to 1940 and was offered in all three grades. This example is the plainest grade offered. It featured the famous Webley Screw Grip third bite and the action had a flat back with rebates in back of action on each side of top tang.
And here is an example of the Model 500, Built as a light game gun in 12 and 16 gauge, it too was known as the Proprietary Model. It was only offered in Grade 2 and was made from 1925 to 1946. Had all the features of the Model 400 but featured a scalloped back on the sides of the action. It also does not have the rebates in the action on each side of the top strap as is on the 400. Crawford, in his book, “The History of W & C Scott Gunmakers”, says very few of this model were made. This one was marketed by Army & Navy.
