BrickLink - Part x488c02pb01 : LEGO Train Battery Box Car with Red Switch and Black Wheels with 'DB 7722' and Weight Table Pattern on Both Sides (Stickers) - Set 7722 (Undetermined Type) [
LEGO 7722 Steam Cargo Train Set Instructions, Trains
7722: Steam Cargo Train Set | Brickset: LEGO set guide and database