Accession number: 2018.0.143
Materials: Wood; Metal, Brass; Leather
Measurements: 42 cm L x 5.5 cm WCase only
Marks/Label: Printed on Alidade "W. H. Harling London / 1913 / No. 1891"; Also with C Broadarrow
Description: An issued wooden and brass alidade (a) with a leather carrying case (b); Wooden alidade has folding triangular brass 'sights' on either end with thick sides marked in inches and distances; With long, smooth, brown leather carrying case with flap at top with leather tab and buckle closure; Back has two leather loops
History of Use: Alidade is a device that allows one to sight a distant object and use the line of sight to perform a task. While this tool was a civilian tool it was also used in WW1 by British / Canadian Military.