Scope and Contents Includes: names and dates of individual manufacturers of navigational instruments, nd; letter from W. J. Hill at the Victoria and Albert Museum, 28 June 1907, re references to Dallond's circle and the Borda Circle in Raper's 'Practice of Navigation and Nautical Astronomy'; notes on the microscopes made by George Adams and his son, by John Neeve, 20 Nov 1920; letter from Adams' son, Francis N[orris] Adams, re the purchase of navigational equipment and instruments from Mrs Gerrard in...