The compass has a black plastic case
can be found at the trademarklondon
It would be relegated during the war to training duties as a base for 81 Operational Training Unit (OTU) during the first months after opening in 1942
The ‘RGS’ type was often used by travellers and explorers around the turn of the century - Ernest Shackleton took several similar compasses with him on his expeditions to the antarctic
and there are marks to the title page and endpapers
Francis Barker Prismatic Compass c.1980 Wooden Compass The compass has a blackA Francis Barker prismatic compass, dating from c. 1980. This compass was listed as product No. 1404 in the 1982 edition of the Francis Barker catalogue. It was described as having an 'enamel finish aluminium alloy case, with adjustable prism for focusing'. The compass has a jewelled pivot, screw down transit lock, manual brake, height adjustable prism and sight, aluminium case, and aluminium compass card. Both the sight and the prism are removable.