Steam hammers were machines that used a steam-driven hammer to shape hot iron.
These steam hammers were imported from the Netherlands in 1866 to be used at the Yokosuka Arsenal.
They allowed iron to be forged at a greater scale and established the Yokosuka Arsenal as the foundation for the modernization of Japan.
As some of the oldest existing steam hammers in Japan, they have been designated as Japan Heritage Cultural Properties and Important Cultural Properties of Japan.

This site is a satellite spot for the Yokosuka Route Museum, a unique way to experience the entire city as a "museum" with "routes" that connects together the history, culture, and natural environment of Yokosuka.


1-1 Higashihemi-cho, Yokosuka (Inside Verny Museum)

046-824-1800 (Verny Museum)

【Opening Hours】
9:00 - 17:00

【Regular Holidays】
Monday (Open if Monday is a holiday, but closed the following Tuesday)
New Year's Holidays (December 29 – January 3)

Free of Charge

1 minutes walk from JR Yokosuka Station

Verny Park Parking Lot, or there is a parking lot nearby



Return to "Yokosuka Route Museum"