Hello folks. New to the forum. S&W 357 mag, nickel, 3 1/2" barrel. This gun came in a gold box with blue lettering. On the bottom of the box it shows these numbers.....S138711, and D1722. Both are hand written. What is the manufacture year for this pistol? This gun "mysteriously disappeared". I still have the box, and would love to find another CORRECT pistol to go in it. My gun was absolutely perfect. Any help?