If the sn date is correct, then some of the other reported facts don't jive. The Field Grade was not marked and cataloged as such until 1913 (Grade was roll-stamped atop the right barrel); and I believe I recall that the OO Grade was not introduced until 1898. What is the serial number? If the number does date the gun to 1891, it will be a 5 digit number starting with the number 3 (3XXXX); and laminated steel barrels would have been used on lower grade Smith guns from the 1891 era. Please advise