Sketch J No. 3 Showing the Progress of the Survey of Washington Sound and Vicinity

Nice triangulation chart of Washington Sound including Strait of Juan de Fuca, and the present-day San Juan Islands, and Admiralty Inlet. Shows reasonable detail of the various islands, rocks, channels, points, harbors, bays, ports, and other similar features. IMPORTANT NOTE: All of our United States Coast Survey (USCS), United States Coast & Geodetic Survey (USC&GS), and similar maps and charts have been professionally unfolded and flattened using humidity baths, semi-permeable membrane, and drying blotter techniques. Most others you typically see on eBay have not been, and worse, are quickly and crudely unfolded for the low-quality photos you see. Unfolding these maps in that way is damaging and weakens them. Please be aware.