#103 Protractor Triangle

Weems and Plath Item #103   The Protractor Triangle is inscribed with black markings. Using two 45° triangles provides an easy method of plotting and performing chart work.  Overview Used as a pair to transfer a directional line on a chart. Protractor scale allows easy alignment with chart meridian in any direction. Direction is maintained as one triangle is slid along the other to desired position. 90° angle helps determine lines of position. Crafted of clear, durable vinylite. Lifetime warranty. Specifications Inscribed with black markings Clear Durable vinylite