Retro 50s tropical tiki style champagnes, with green and yellow bamboo design. These were probably go-alongs to a vintage USA dinnerware pattern, but I just can't remember the maker of the yellow bamboo pattern... the bamboo is brown on the American Heritage Stetson pattern, so it's not that.
This is a set of six, so works fine on it's own, even if you don't collect this pattern! The stemmed glasses are 4 1/4" tall, and measure 3 1/2" bowl diameter. All are in perfect condition.