Leoš Wertheimer was born in 1956 in Přerov, Czech Republic. His unique passion was the history and construction of locomotives. In 1997 he started drawing. His pencil and coloured pencil drawings on strips of wrapping paper depict various types of locomotives and are marked with the full name of the locomotive. The artist also noted technical details as well as the scale of the drawing. His works can be found in public and private collections.