بتلتر متوازي الملاحة البحرية من ويميز اند بلاث
مميزات خاصة
- Weems & Plath 120, WEEM120
- Unique roller to aid course plotting
- Distance scales at 1:20,000, 1:40,000 and 1:80,000
- Also includes semi-circular protractor for measuring courses and bearings against meridian on chart
- Instructions for the Weems plotter are included
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