Rare Official Postcard: IJN Battleship HARUNA by Kawasaki Dockyard (Pre-WWII)

This is an incredibly rare, original pre-war photographic postcard of the Imperial Japanese Navy's Kongō-class battlecruiser, Haruna.

The image captures the warship at full speed during her sea trials, billowing massive plumes of thick black coal smoke—a symbol of raw mechanical power in that era. What makes this piece truly exceptional is its provenance: it is an official commemorative postcard issued by the Kawasaki Dockyard in Kobe, the private shipyard that built her. It features their official logo and imprint, elevating it from a mere souvenir to a primary historical document.