Lloyd's building consists of three main towers and three service towers around a central, rectangular space. Its core is the large Underwriting Room on the ground floor, which houses the Lutine Bell within the Rostrum. Also on the first floor is loss book which for 300 years has had entries of significant losses entered by quill. The Underwriting Room (often simply called "the Room") is overlooked by galleries, forming a high atrium lit naturally through a huge barrel-vaulted glass roof. The first four galleries open onto the atrium space, and are connected by escalators through the middle of the structure. The higher
HMS E20 British code. Upon arriving at the designated location, "UB-14" surfaced and fired a torpedo at "E20" from a distance of . "E20"s crew saw the torpedo, but it was too late to avoid the weapon. The torpedo hit "E20"s conning tower and sank her with the loss of 21 men. "UB-14" rescued nine, including "E20"s captain who, reportedly, had been brushing his teeth at the time of the attack. HMS E20 HMS "E20" was a British E-class submarine built by Vickers, Barrow-in-Furness. She was laid down on 25 November 1914 and was commissioned on 30 August 1915. She was sunk,