18" Aluminum Arms Parallel Rule (Weems & Plath 138) Inner Seas of the West Coast of Scotland who initiated this era of

who initiated this era of discovery

Vessels sailing under the Panama Country Flag are required to have on board this flag as part of flag state requirements that derive from maritime regulations in the International Code of Signals and the International Safety Management (ISM) Code

HTS Code: 9608

NOAA Edition #: 28

published by the United Kingdom Hydrographic Office in 2018

18" Aluminum Arms Parallel Rule (Weems & Plath 138) Inner Seas of the West Coast of Scotland who initiated this era ofThe 18 inch (45. 72cm) Aluminum Arms Parallel Rules feature aluminum arms that join two clear acrylic rulers enscribed with a protractor scale. An essential item in any proper navigation kit, these rules are used to plot direction on a nautical chart from any convenient meridian or compass rose. The two straight edged rulers are connected to maintain the same angle. By walking the rules across the chart and securely holding down the non moving ruler,