Règle intégrale - Cras et rapporteur

This integral Plastimo ruler combines the two-tone Jean Cras ruler with a Topo protractor. The rotating window allows the route to be read straight to the eye, even on southern routes.

A solid yellow background makes it easy to read on the printed areas of a paper marine map. Numbers are engraved in red for angles from 180° to 360° on both the rotating protractor and the Cras ruler.

• Length: 38 cm