Prins August - Old Steam Locomotive

Of the oldest B-locomotives are one, Prince August, preserved. Built in 1856.
It was taken out of service in 1906, but was saved as a museum piece.
At the 100th anniversary in 1956 restored it to running condition
and are thus now one of the world's oldest executable locomotive in original condition.
The locomotive is occasionally out from their regular placement
Swedish Railway Museum in Gävle and demonstration runs
as it did 2015 May 23 at the Swedish Railway Museum 100th anniversary