This retro Speed Products stapler is a precursor to the iconic Swingline brand. Swingline was founded in 1925 in New York City by Jack Linsky as the Parrot Speed Fastener Company. In 1939, the company changed its name to Speed Products, and in 1956, it became Swingline. It became a division of ACCO Brands in 1987. Therefore, we can date this stapler to between 1939 and 1956.