Leoš Wertheimer was born in 1956 in Přerov, Czech Republic. His unique passion has always been the history and construction of locomotives. In 1997, he began drawing. His coloured pencil or pencil drawings on strips of wrapping paper represent various types of locomotives. Every drawing has a title: the name of the locomotive and the artist also notes technological details as well as the scale of the drawing. Curiously, he often marks the number of hours the drawing took him. His works are found in public and private collections.