This  Vintage Lionel Multi Volt Type A Toy Transformer is a black, 100W AC transformer made of pressed steel in the United States in the 1950s. It features a 5-position dial control system for analog operation and is compatible with DCC control systems. Designed for O gauge model railroads, this transformer by Lionel is a vintage piece for collectors and hobbyists aged 17 years and up, offering a nostalgic touch to model railroads and trains.