Diary December 13, 194012-1940, War Diary, Year 1940 / December 13, 2020 December 13, 2020 / Leave a Comment / By Kretaner / 1 minute of reading Production of field guns in Germany.Diary for Friday, December 13, 1940: Sea War Mediterranean: Cruiser Coventry damaged by Italian submarine Neghelli off coast of Libya. for sharing: Share Tweet LinkedIn