Weems & Plath Marine Navigation Fixed Points Divider (6-Inch)

Weems & Plath Marine Navigation Parallel Ruler Without Protractor Markings (15-Inch)

Weems & Plath 12” Parallel Ruler #140 with Brushed Aluminum Arms

Navigation Rules and Regulations Handbook: Updated to LNM and NTM 7-18 Paradise Cay Version

U.S. Chart No. 1: Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts, 12th edition

Weems & Plath Marine Navigation Nautical Slide Rule

Weems & Plath Marine Navigation Parallel Plotter

Weems & Plath Marine Navigation Protractor Triangle with Black Markings

Davis Instruments Illuminated Hand Bearing Compass

Weems & Plath #176 Marine Navigation Ultralight Divider

The Annapolis Book of Seamanship: Fourth Edition