The USPS Plotter
is a simple, versatile chart navigation plotter. This plotter comes
complete with basic instructions that demonstrate how to use this
product to draw a course line, read a course, determine coordinates and
even how this plotter can be used as parallel rules. Constructed of
durable, transparent plastic.
The USPS Plotter is designed by the United States Power Squadron and manufactured by Weems and Plath. The United States Power Squadron is an organization dedicated to making boating safer and more enjoyable by teaching classes in seamanship, navigation and related subjects.
- Weems & Plath