Could you guess…

       …from the thumbnail?  Farcebook has an irregular display of items; the gist of which is - "If you know what this is you are officially old."  I am forced to admit that, at damnear 83, I'm way too young for some - THEN - it's revealed that I'd need to be an ancient American to know some of them.
       I'm forced to wonder, if I didn't show the Instructions or the word on the front; how many would know?