Man paddling a log, 1931.

Man paddling a log, 1931.

Man paddling a log, 1931.

Wooden log-ship, in the form of a fish, probably early 19th century.

Slide rule, 1815. Made by W Cary. Slide rul

Slide rule, 1815. Made by W Cary. Slide rul

Commercial logging, New Zealand, 2001.

(1) Avro 504K biplane D7560 with 130hp Clerget engine no. 52090; (2) Aeroplane Log Book; (3) Engine Log Book; and (4) 30 hour - non-luminous Mk.V watch

'Timber Slide Ottawa', 1860.

Catamaran from the Coromandel Coast, India.

Ancient Egyptian capacity measure, 1412-1376 BC.

Ancient Egyptian capacity measure, 1412-1376 BC.