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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
Acme Course Corrector
Sea Emergency Devices Company
USA
Metal in a wood case
est. 1940
Dia. = 25.5 cm
Marine Navigation
Notes:
"A slide rule type of device to calculate a correction to a ships course using true course, magnetic course, compass course, variation, deviation and compass error."
Image 1
Image 2
Image 3
