I bought two Model 41s last month. Paid 870 for a 5.5 heavy and 900 for a 1974 7 3/8" with suppressor, original box, two magazines, owner's manual, screwdriver, extra barrel weight. It's in pristine condition.
I just purchased two Model 41s. A new model (5.5 inch barrel) and a used model ( 7 3/8" barrel. It looks exactly like yours, flash suppressor, second barrel weight, both magazines and in great condition) -- serial number 1966XX. That's some time after 1974 (based on a notice of a parts/service...