Electrall was a device to electrocute insects in the field at night (basically like a modern-day bug zapper, but on a larger scale). Road vehicles Light duty trucks IH is often remembered as a maker of relatively successful and innovative "light" lines of vehicles, competing directly against the Big Three. The most common were pickup trucks. IH made light trucks from 1907 to 1975, beginning with the Model A Auto Wagon (sometimes called the "Auto Buggy"). Production commenced in February 1907 at IH's McCormick Works in Chicago, although production was moved to Akron, Ohio, in October that year. Powered by a horizontally opposed, air-cooled twin around , it was a right-hand-drive model popular in rural areas for high ground clearance on the poor roads typical of the era. It featured a rear seat convertible to a carrier bed. The Auto Wagon was renamed the Motor Truck in 1910, and was a forerunner to the successful modern pickup truck. They were called IHC until 1914, when the 'International' name was first applied. The final light line truck was made on May 5, 1975. Following the early success with the Auto Buggy, International released their K and KB series trucks in the mid-1940s. They were more simplistic than other trucks released in that era. This was followed by the L Series in 1949, which was replaced by the R Series in 1952, followed by the S line (a name re-used later for IH's larger medium-duty trucks) in 1955. In 1957, to celebrate IH's golden anniversary as a truck manufacturer, this was replaced by the new A line. 'A' stands for anniversary. With light modifications to its appearance, but more serious changes under the shell (and a number of new names), this design continued in production until replaced by the 1100D in late 1969, which looked very similar to the Scout which was already in production. Corresponding with the truck "letter lines" was the Metro line of step (delivery) vans. Starting in 1938 and manufactured through 1975, the Metro series was produced and updated with each iteration of IH's truck lines. Also, special-use variants were sold, such as the Metro Coach (a bus version with windows and passenger seats) and Metro front-end section and chassis for full commercial customization. Additional variants were based on the medium-duty engine and chassis lines. IH abandoned sales of passenger vehicles in 1980 to concentrate on commercial trucks