tikka3006,
The serial number you have there is for a 1963 12ga Superposed. From 1962-1969 the serial number was followed by a letter (S=12ga, V=20ga, F=28ga, J=.410) and then a number at the end indicating the year of manufacture, 3 in your case. So what you have is 1963 12 gauge Superposed SN:13600 -Best, Deltamac
