Decode factory wheels for my 69

[Ban-One]

I found my other Camaro wheel this morning and I was woundring if you guys can decode it?
K18 7 2 4 D C
GM J K1 8
15x6 JK 7 B

[JohnZ]

"DC" is a 15" x 6" '67 Corvette rally wheel; was also used on some '67 full-size station wagons; that one is a service replacement made in 1968. 

[Ban-One]

Heres the numbers on my wheels that i got on my 69 camaro.
Right Front-K 1 G-GM
Right Rear -N 13 GM1-3
Left Front-11 GM K 1 9
Left Rear-M (with a circle around it) E k 1 9
This is the only info I can get because theres tires on it.