Proportional Divider by Weems & Plath

Blundell Harling Dividers

Proportional Divider - Proportioner

Vintage Weems & Plath Brass Parallel Rule and Brass One Hand Dividers - boat parts - by owner - marine sale - craigslist

An updated version of the Breton Plotter or Portland Plotter, 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. Variation can be preset on the movable rose for ease in plotting compass bearings. The edges of the Weems Protractor are graduated in inches and centimeters.

Weems & Plath Protractor

Proportional Divider by Weems & Plath

Weems & Plath Professional Mariner's Navigation Kit - 3250

Weems & Plath Marine Navigation : Sports & Outdoors

Weems & Plath Marine Navigation

Weems & Plath 18 Bi-Rola Chart Plotting Rule only £129.95

Weems and Plath Divider - Nex-Tech Classifieds

1953 Weems & Plath PROPORTIONAL DIVIDER SET Time Speed Distance Navigation Pilot

Weems & Plath 5'' Fixed Point Dividers