I believe you have vinyl wallcovering in a '67. Zolotone was only used until '65 or so. If it's Zolotone, it has different colored "speckles" like splatter-paint, and the texture is from the splatters. If it's vinyl, it will have a "color" & a "texture" usually a very regular, fabric-like texture to it.
If the vinyl is adhered well, you could Zolotone over it if you want, for the "look", although any texture of the vinyl would show through...or there was a thread somewhere about stripping the vinyl previous thread
Good luck Lana with whatever you decide to do!