well found the buck tag today on the now disassembled 70 coupe. If i would have looked it would have bit me even though it was camoflaged with chassis paint. Odd thing about it is it is fairly blank. first row has Vin and couple of spaces followed by 65A then few spaces then K then few spaces and 5. Thats it rest is blank except for larger stamped in 2 and 3 diagonally across bottom corner. This has got to be the basest stang I've ever seen 0 options. So tag experts what are the K and 5 for ?