Don't rightly know for sure, but it was just after I got back from the Korean war and became a civilian again. So it's probably been 50 ys plus some now. I live in So. Calif and the laws have changed over the years regarding valid reasons but the Sheriff keeps renewing mine each time (2yr renewals now, used to be each year) . I've put holes in two bad guys over the years, both illegals, who made the mistake of bringing a knife to a gun fight. My usual carry gun is a custom S&W Model 25-2 , 2 1/2 inch, round butt, made for me by Jon Jovino back in the 60s.