Hi I recently got a couple old s&w revolvers.so far I've been able to identify one of them with help from this forum. Thank you . now ill try my luck again . this one is an old 357 magnum its got a 5 inch barrel and stag grips its got a huge frame compared to my Taurus 66 there does not appear to me a model number any where there is a serial number on the butt it is511xx there are numbers stamped in the yoke they are reg2112