Sealion (1959). The forward submarine escape trunk between 23A and 26 stations.

A roll film negative. The submarine Sealion (1959) during a refit at Portsmouth. A close view of the forward submarine escape trunk between 23A and 26 stations, looking forward at the open hatch from the casing. The boat is afloat alongside a stone wall and it is after dark. A tractor tug, either Fiona (1973) or Helen (1974), is across the boat's bow.