Looks good from here, but only letter to be sure. Is there a "b" inside of diamond near SN in barrel shroud? Any service dates on frame under grip?
Not much better than a 5" 44!!
This pic in Sixguns cost me a chunk to finally get one, lol. Had the pleasure of meeting Mr. Keith, when he spoke to S&WCA in Boise, and he got a chuckle out of that.