Another reader of my book has shared with me information on the "Utility Gun" models. The "Utility" gun is one action with a rifle barrel and a shotgun barrel with a forearm for each. On page 17 of my first book I list the model numbers as printed in the Savage 1940 catalog. They are 221, 222, 223, 227, 228, &229. Please note that none of these numbers are actually on the guns. The catalog states that other combinations are availble on special order. This reader has found a listing of "Utility Guns" with other model numbers. While I don't know where this information was found, it goes right along with the earlier Savage printed numbers, and I believe it is safe to use this newly found list until someone proves it false.
1-3-18 An updated list of model numbers is on page 294 of my Revised Edition.