Francis Barker Magnifying Glass Compass (1906) Bristol Fighter with minor signs of wear

with minor signs of wear and use and some small marks

often used by aviators and the military

There are also a number of appendices at the rear

Lt-Colonel Charles Arthur Wynne Finch (1841-1903) was born on 6 April 1841

Barnes Wallis went on to work on the design of the R

Francis Barker Magnifying Glass Compass (1906) Bristol Fighter with minor signs of wearAn early example of the Francis Barker 'Prospecting compass, dating from 1906. It was a version of Barker's 'Glow Needle' design, which was patented in June 1906 (Patent No. 12777). The Patent number and the date '1906' are stamped on the base. The compass has a raised graduated ring, luminous painted flat needle, agate cap, side stop, and transit lock. The lid is fitted with a powerful magnifying lens, described in Barker's 1909 catalogue as being