I posted the date code list for Sears / Ted Williams / JC Higgins guns somewhere in this thread. Your 2 letter code of 'JK' indicates an October 1965 Date of MFG.
Sorry I have forgotten to check into this forum for years now.I have a Ted Williams 12 gauge Model 200 GA Serial number P1690XX and the stamp on the barrel is odd. It looks like a small 'U' and a N after it. Im thinking according to your numbers that this can only be an 'H' making it a UH stamping. Would this then be August 1969?Thanks!
My 21st edition of Gun Traders Guide lists the sears model 54 in30-30 at @$155 it was made by winchester, and has as same generalspecs as the model 94, no model 100 shown. Hope this helps alittle.This has got to be the wierdest cooinceident I have ever seen. Itoo own a Ted Williams Model 100 rifle with the exact same serialnumber that you have listed here. I was randomly searching forrifles and values and came across this info and was shocked tolearn that the serial numbers matched.Several thousand people have guns with the same number.
Winchester Ted Williams Model 100
It's aSears Roebuck ID number, not a serial number.My model 100 has the serial # under the reciever. The blue bookof firearms lists my serial # as 1964 manufacture.