Lot Essay
INDENTOn 19 August 1919, H.M. Submarine E 23, patrolling in the Heligoland Bight, unsuccessfully attacked H.I.M.S. Derfflinger at 3.13 a.m., but twice, at 5.00 and 7.20 a.m. torpedoed H.I.M.S. Westfalen which returned to the Jade