Last Benefit Kegger Alexis - SignedMonte Dolack 14" x 19. 5" 1977 Archived This poster, for the 6th annual Aber Day Kegger, features a flower child type woman surrounded by wildflowers, and wheat. The Aber Day Kegger was held every year from 1972 1979 to raise money for the University of Montana library. For an $8 admission ticket, you got all the beer you could drink (from the Guinness Book of World Records holding 100+ kegs), as well as hear popular blue grass and rock bands like