The souvenir piece is the final drawing that I own for the Horse Drawn Trolley Advertising. For the Purex company of cleaners featuring their Old Dutch brand of cleanser. The design features cans of the product with the Dutch Girl chasing dirt away. The cleanser is similar to Comet and is still being produced to this day. I do not remember Purex being a sponsor at the park....so this may have been created to sway them or even just as a way to put some turn of the century realism to the ads. Purex had just purchased the rights to this cleaning product in April of 1955.