Of particular interest is the railway-type semaphore signal used to control navigation through this opening bridge.
The bus belonged to the then Barrow Corporation bus undertaking.
This is one of a series of views featuring buses in the 60s, 70s, and 80s. Link
Mikasa Street, like most of the streets in this part of Barrow, is named after a Barrow-built ship, in this case HIJMS Mikasa, the flagship of the Japanese Fleet at the battle of Tsushima in 1905. See http://en.wikipedia.org/wiki/Japanese_battleship_Mikasa for more details.