i have two of these but as of now both are being used by two ladies in my family. well i purchcased the first of these when i was stationed in 1971-1972 at pax river md. serving with vp24. just outside the base was burrels gun shop and a detective had traded it in for another handgun. it came with his bianchi shoulder holster which i still have.i used to carry this gun. the other was left to me by my mother.anyway the one from my mother i had noted the numbers is marked on the butt 992j13 and on the frame mod 36. on the yoke 10267 plus g12 and 27 in a circle. this one has a serrated front ramp sight. flat thumb latch pinned barrel round butt diamond checkering. 38 s.&w. spl right side of barrel. the other gun which i didnt write any info about is one i will check on.the serial number is it the one on the yoke or butt of the gun.thanks john.