Help ID dealer

[TAR6569]

Hi, picked up a 68 protectoplate today and the top half of the back cover was removed for the replacement plate. Half of the warranty notice from the dealer is left and I'm trying to ID the dealer with what remains.

Car was sold new in the Chicago area. Second owner lived in South Holland.

Only thing that will help is dealer or their service department was located at 103rd St I.C.

I could post a pic of what's left if that would help. I know there are some knowledgeable Chicago guys on here.

Thanks