Bain & Ainsley Course Indicator

The inscription on the instrument reads "BAIN & AINSLEY’S ‘HA-HY’ COURSE CORRECTOR PAT. NO 2345 SOLD BY A. DOBBIE & SON LTD GLASGOW & SO SHIELDS." A label in the box reads "Thos. L. Ainsley, James Street, Cardiff. HEATH & COY., Limited, Crawford, Kent." A tag reads "H.M.S. ADMIRALTY SERVICE."
A. Dobbie & Son, Ltd., were in business from 1896 to 1903, offering chronometers and other instruments for nautical use.
Ref: T. N. Clarke, A. D. Morrison-Low, and A. D. C. Simpson, Brass & Glass. Scientific Instrument Making Workshops in Scotland (National Museums of Scotland, 1989), pp. 228-234.
Currently not on view
Object Name
course indicator
date made
ca 1900
Dobie, James
compass box without lid: 5 9/16 in x 10 1/2 in x 10 1/2 in; 14.12875 cm x 26.67 cm x 26.6954 cm
top lid: 1 13/16 in x 11 1/8 in x 10 1/2 in; 4.60375 cm x 28.2575 cm x 26.67 cm
overall: 7 1/2 in x 11 1/8 in x 10 1/2 in; 19.05 cm x 28.2575 cm x 26.67 cm
place made
United Kingdom: Scotland, Glasgow
ID Number
catalog number
accession number
Measuring & Mapping
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History, Kenneth E. Behring Center

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