Weems & Plath Parallel Rule Set Adult 15 Inch Clear #141 Nautical Navigation Weems & Plath #141 15-inch parallel rule and divider set represents essential nautical navigation equipment for chart work and plotting. This professional-grade set includes a clear acrylic parallel ruler with aluminum arms and a matching divider, both preserved in their original protective sleeves. Manufactured in Taiwan for the renowned Annapolis-based maritime company, these tools provide the precision required for marine drafting and course plotting. The ruler features clear markings and sturdy construction, while the divider allows for accurate distance measurement on nautical charts. Brand: Weems & Plath Model: #141 Material: Acrylic, Aluminum, Steel Length: 15 inches Origin: Taiwan "Nautical, Navigation, Maritime, Drafting, Cartography" Please see all photos for more on the description #Travel