This tramway tunnel leading to the Armory Gallery is located at Newington Armory, the former Royal Australian Navy armament depot, in the western suburb of Sydney Olympic Park. The tramway lines were built from Armory Wharf to various buildings on the reserve. The gallery is Building 18, one of the largest armament storehouses on the site, surrounded by earthen banks to contain blasts. It now houses a flexible exhibition space that can accommodate 500 visitors.
This mural is painted on the front of a couple of traffic signal boxes along George Street, at The Rocks. They are close to the Brown Bear Lane mural and extend the theme of that artwork which depicts Brown Bear Lane in 1901, once located close to this spot. The signal boxes are under the railway viaduct which was built in 1956 to nearby Circular Quay railway station.