Serial number on barrel 6874 underside of the barrel has a stamping of B + 1 and a symbol. Lowers serial 322190 with 190 stamped on the inside of the grips . Upper serial number is 299693 , 693 on the hammer, 089 on the slide with a number or symbol in front of it . I’ve had in my gun safe for yrs after inheriting it from a family member. Didn’t have any luck posting pics so message or email me and I can do it through email. Worth ? I have no idea these guns are all over the board . So maybe someone can give me a idea haven’t taken to my local gun guy yet for a appraisal.Thx