Weems & Plath 556 USPS Plotter

Weems & Plath 556 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.