Prototype flight log box belonging to Michael Pearson and relating to his work on the Omnitrac airborne computer 1959-1977
"Harrier" Log and speedometer, consisting of:- 1) Distance log 2) speedometer, 3) gravity switch, 4) and 5) Impellers, and 6) and 7) brass fittings, from the Gipsy Moth IV, sailed around the world by Sir Francis Chichester between September 1966 and May 1967, by Brookes and Gatehouse Limited, Lymington, England, 1965-1966 'Harrier' log and speedometer 1965-1966
Bliss patent log. "Taffrail log" brass rotator with 4 vanes in 9 1/2" long, one vane engraved "John Bliss and Co." and dates of patent (78,84,85,USA, 85 English). Recording portion for securing to taffrail of ships, brass hook and pin and metal key for bending slitted portion of two vanes Bliss patent log. "Taffrail log" brass rotator with 4 vanes in 9 1/2" long 1880-1911