A collection of naval and military telescopes and binoculars, comprising: a single drawer 'Officer

A collection of naval and military telescopes and binoculars, comprising: a single drawer 'Officer of the Watch' type telescope, by Ross and numbered 63447, inscribed to E. G. C. Cavendish, R.N., the sliding shade inscribed with the names of this officer's ships, with objective lens cover and slidngshutter over the incident lens; a pair of Great War field glasses inscribed 'D. F. HENDERSON. R. INNISKILLING FUSRS.', by Ross, in leather case; a Great War British Mk VIII trench periscope, by P. & J. Beck Ltd. and dated 1917, with dismountable wooden hande; an Imperial German 'Officer of the Watch' type telescope, by Voigtlander & Sohn, marked with a crowned 'M' and numbered 1177; a pair of Barr and Stroud 7 x C.F. 41 naval binoculars, with patent sea spray covers; a pair of field glasses by Carl Zeiss; another pair with British Air Ministry markings; and a monocular. [8]

Evan George Charles Cavendish, O.B.E., was born on the 23rd of February 1891, the son of Lt-Col. the Honourable W.E. Cavendish, Grenadier Guards. He entered the Navy in 1903. As he rose in rank he overcame initial difficulties to show great aptitude in a variety of seagoing and shore appointments.

Captain Duncan Frank Henderson, 1st Battalion Royal Inniskilling Fusiliers, was killed in action by phosgene gas during a German attack in the Potijze area on the 9th of August 1916. The Inniskillings lost 7 officers and 81 other ranks killed, but held off the Germans with machine gun fire.