Weems & Plath Weems & Plath Weems Protractor

An updated version of the Breton or Portland Plotters, the Weems
Protractor has a movable compass rose grid that can be used to lay
off a course or bearing, measure distance between any two points,
plot position on a chart from a given set of coordinates, or
determine coordinates of position on a chart. 

Features:

• Updated version of Breton and Portland Plotters
• Movable compass rose grid
• Edges graduated in inches and centimeters
• Pencil and sharpener included
• Lifetime warranty

Specifications:

• Length: 15.2 in (38.61 cm)
• Width: 5.2 in (13.21 cm)
• Height: 0.5 in (1.27 cm)
• Dimensions: 15′ x 5′ (381 x 127 mm)
• Weight: 0.4 lb (1.27 cm)
• UPC Code: 721002003171
• HTS Code: 9017.20.7000