The ship in the background is HMS Illustrious built in 1976 at Swan Hunter but due to be decommissioned in the next few years. She is an Invincible class light aircraft carrier, the first in class being built in 1973 in the shipyard of the town where I live, at some point the Invincible would also have been in a dry dock (used for construction, maintenance and repair of ships).
I wonder if it was this large one in Devonshire Dock , maybe not for this photo is on a postcard from the 1920s. The photographer has climbed the Vickers Crane which was very high and dominated the town, as did its replacement, both now gone, are as all the chimneys in the background which I think must be the old steelworks.
Dash over to ABC Wednesday where there are lots more words starting with D



