18" Aluminum Arms Parallel Rule (Weems & Plath 138) Inner Seas of the West Coast of Scotland British Admiralty Nautical Chart 705:

British Admiralty Nautical Chart 705: Islands in Lakshadweep (Laccadive Islands) is a standard nautical chart

Scale 1:750

British Admiralty Nautical Chart 193: Islands in the Sicilian Channel is a standard nautical chart

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

British Admiralty Nautical Chart  893: Gulf of Bothnia

18" Aluminum Arms Parallel Rule (Weems & Plath 138) Inner Seas of the West Coast of Scotland British Admiralty Nautical Chart 705:The 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,