The listing, Vintage Pinback Buttons Kleenex Boxes Set of 8 From 1968 has ended.
Here is a set of vintage pinback buttons showing how Kleenex boxes looked over the years.
I believe these were all manufactured in 1968, as they all say KLEENEX TISSUES '68 along the bottom edge.
The different years depicted on the pins are 1924, 1928, 1932, 1936, 1938, 1960, 1964, and 1968.
There are some scratches and paint loss on some of these, and some dents here or there.
They each measure approximately 3 inches in diameter.