Introduced c. 1960, this "new kind of paper mat" was designed to "look pretty as cloth...work better than plastic," and enable busy families to "set a fresh table every day...with these cloth-like mats you just toss away." (Though the word "biodegradable" was coined about this time, evidently it proved problematic to rhyme.)
Your author is not shown at top, though according to a reliable source I sat at other mats from this opened package, retrieved from the basement of the family house in Stamford.