German submarine U 157 under repair at the Kaiserliche Werft, Kiel, Germany in 1918

A list dealing dated 28 June 1918 reported the status of work on the submarines expected on 30 June. Work started on 22 April 1918. Planned completion on 17 June. Description of the work overhaul. Remarks replaced on 26 June 1918.

Source

Bundesarchiv RM 3-11254.