You gotta admit--this shows determination! This poster was available back in the day from Bagnall Publishing. It was founded by Bill Bagnall (1926-2006), publisher and editor of Motorcyclist magazine from 1952 to 1972. He sold the magazine to Petersen Publishing in 1970, but kept a small publishing house on the side for his retirement years. I managed to pick up a number of his posters, including this one, while his firm was still in business.