Photograph of dazzle painted oil tanker Cadillac undergoing repairs at Smith’s Dock yard at North Shields on the River Tyne. Cadillac was built by Palmer’s Ship Building & Iron Co. Ltd., Hebburn-on-Tyne and completed in December 1917. On 7th April 1918 she was torpedoed and damaged by U-53 about 100 miles WSW of Bishop Rock. Cadillac was one of Wilkinson’s dazzle ships that made port after a U boat attack. I think it is a fair bet that the repairs are for the damage caused by U-53’s torpedo. (TWCMS : 1993.9590 – Smith’s Dock Notable War Jobs album)