Artist: Bob Helsey Title: 1987 Poster Convention Year: 1987 Signed: No Medium: Offset Lithograph Paper Size: 37.75 x 24.25 inches ( 95.885 x 61.595 cm ) Image Size: 36.75 x 23.25 inches ( 93.345 x 59.055 cm ) Edition Size: Unknown Framed: No Condition: A-: Near Mint, very light signs of handling Additional Details: Poster designed by Bob Helsey and Michael Clark for the 1987 Poster Convention.