LEGO 7722 Steam Cargo Train, Battery Set Parts Inventory and Instructions - LEGO Reference Guide
LEGO 7722 Battery Train Set - The Brothers Brick | The Brothers Brick
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) : Part x488c02pb01 | BrickLink