Contains the Region A & B Maritime Buoyage symbols required for updating and correcting nautical charts

Last Correction: 5-Aug-2019

Marine aluminum roller

Author: David Seidman

#104 Professional Protractor Triangle Nautilus Instruments Contains the Region A &The Professional Protractor Triangle with handle is larger than other navigation triangles on the market with legs that are 9. 312 inches long and a hypotenuse (long side) of 13. 125 inches long. Overview Larger and improved version of our popular 101 protractor triangle with handle. Pencil and sharpener included. Clean uncluttered design. Both 320mm & 1 80,000 scales shown. Inscribed with contrast enhancing colors. Hole at vertex allows several uses,