Parallel Rule / SOLD

Parallel Rule - Inventory Number: MIS 053 / SOLD

Made of ebony and brass.  Navigators use parallel rulers for laying off a specific course on a chart.  They were first invented in 1584 by a Frenchman named Mordente, but only became common in navigation in the 18th century.  Measures 6 inches when closed.

Inventory Number: MIS 053 / SOLD