20 vintage '68 Ballantine Ale double sided cardboard bar coasters

Bundle of 20 vintage 1968 Ballantine Ale cardboard bar coasters. Double sided. Side 1 - "Ballantine Premium A Very Special Glass of Beer" in red. Side 2 - "Ballantine Ale For A Taste You Can Feel" in green. 3-3/8" square. Never used with drinks. There is age to the cardboard darker around edges. Some very minor age spotting/dents/scratching on very few of them. Most are in excellent vintage condition aside from the aged patina. Overall great condition. Would make a great addition to your retro bar/man cave. Perfect gift for beer enthusiasts.