The International Association of Amusement Parks issued these posters in 1963. Compiled in a tightly bound album, they would be mailed to amusement park owners across the country in book form. Individual posters could be ordered, but a full size freebie poster was inserted in every copy of the subscribing member's edition. Measuring roughly 21x17 inches each, there were 47 different posters available in 1963 - ready for display in break rooms and maintenance offices. Though each poster is generic in nature, it's interesting to note the graphic influence Disneyland was already having on the industry - and theme park safety issues in general.