Two things came up (1) I am color blind so that makes it hard for me while searching older catalogs. and (2) It is even twice as hard on me because everything is in black & white on vintage catalogs.
I have an old pair of groove-joint pliers with dark blue handles--can no longer read the brand name, but I suspect they're craftsman. Inside one of the jaws there's a small "67" cast; this could just be a foundry mark but I've wondered if it was the year.