Are you talking about these ? I think they were issued once in 72 or 73 ( unlike the Cloth Emblems which were issued annually over a 7 year period I think they were just issued once). The wrappers indicate gum but nothing else. I do not have an unopened pack. I am also missing ( I think) one square decal and 3 of the rectangular ones. These are pretty tough
The earlier iron on had an instruction card. It would make sense there was something besides gum in the packs to prevent damage to the decals. Not sure about the quiz cards. I have 28 different yellow quiz cards but only 5 white ones. I think as Barry said, the white ones without logos came out first
