The Vintage Snap-On No 71-N Ratchet is a 1/2" drive standard ratchet with a unique "2" code.  Could be 1942 but looks more like the 1952 code. Made in the United States by Snap-on.    Marked made in U.S.A.    Nice looking wrench.  Cool item for your collection!  Approx 9 1/2” length.