Motorised fire engines date back to January 1897, when the Prefect of Police in Paris applied for funds to purchase "a machine worked by petroleum for the traction of a fire-engine, ladders, and so forth and for the conveyance of the necessary staff of pompiers". With great prescience the report states "If the experiment prove successful, as is anticipated, horses will eventually be entirely replaced by automobiles". This was, indeed, the case and motorised fire engines became commonplace by the early 20th century. By 1905, the idea of combining gas engine motor trucks into fire engines was attracting great attention; according to a "Popular Mechanics" article in that year, such trucks were rapidly gaining popularity in England. That same year, the Knox Automobile Company of Springfield, Massachusetts, began selling what some have described as the world's first modern fire engine. A year later, the city of Springfield, Illinois, had filled their fire department with Knox engines. Another early motorized fire engine was developed by Peter Pirsch and Sons of Kenosha, Wisconsin.