Top left drawing is the submarine W4 launched in 1915 and completed in July 1916. She was transferred to the Italian navy on 7 August 1916 and was sunk by a mine off Capo Rodoni 4 August 1917. Below and to the right of the W4 is a TB13-class torpedo boat, formerly rated as a coastal destroyer. These boats were launched between July 1907 and May 1909 and were TB13 to TB36 inclusive.
The lower left image is one of the 'P'-class patrol boats numbered (with gaps) between P11 and P64. There were 44 of them in the class, launched between October 1915 and May 1918. They have a particularly low silhouette and were built with hardened-steel ram bows.
The bottom sketch is of the submarine E35, launched on 20 May 1916 by John Brown & Co. Ltd on Clydebank. She was broken up at Newcastle from September 1922. There are also a number of sketches of unidentifiable flying boats.