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36 x 38 cm 14.15 x 15 in. Sketch of South Farallon Island Pacific Ocean. The Farallon Lighthouse, the Year It Opened. Twenty-seven miles west of the Golden Gate, the Farallon Islands rise out of the Pacific like broken teeth. Fog, current, and a lack of accurate charts had already claimed vessels; the need for a reliable chart of the approaches was urgent. This is that chart – the first careful U. Survey of South Farallon Island, made in 1855 by Lieutenant William P. Trowbridge of the Army Corps of Engineers, published by the U. Coast Survey under the direction of Alexander Dallas Bache. The Farallon lighthouse was lit that same year. This map and that lighthouse were the federal government’s answer to the same problem. THE MAP IN DETAIL. The sheet combines two kinds of cartographic information that mariners needed. Above, a plan of South Farallon Island drawn to scale, with topographic hachures showing the rugged interior terrain, the Light House plotted on the eastern high ground, and the jagged coastline rendered in careful detail. Soundings and navigational notes accompany the plan. The latitude of the lighthouse is given as 37°41’50N; the longitude is computed twice – from Greenwich in arc, and in time from the 1853 observations – a standard check of geodetic precision that reflects Bache’s exacting scientific standards. Below the plan, three coastal profile views show the island as a navigator would see it from the sea: View No. 1 from direction C-I; View No. 2 from direction A-L; View No. 3 from direction A-B. The jagged, spired profile of the Farallons, with its dramatic peaks and sea stacks, is rendered with real skill by engravers G. 1 shows a small vessel and what appears to be a surveying mast or signal staff on the rocks – likely Trowbridge’s own survey party. Alexander Dallas Bache, great-grandson of Benjamin Franklin, ran the U. Coast Survey from 1843 until 1867 and transformed it into one of the world’s leading scientific institutions. Their collaboration on the Pacific Coast Survey produced the foundational charts of California’s coastline during the most consequential decade in the state’s history. The Farallon Islands had been a site of the sea otter and seal trade for decades before the Gold Rush; by 1855, egg collectors were harvesting murre eggs by the hundreds of thousands to feed San Francisco. The lighthouse that Trowbridge’s survey helped site – perched on the highest point of the eastern island, visible in the plan – stands to this day. From the Annual Report of the Superintendent of the Coast Survey series. 46, chart reference J. Drawn by John G. Rex; engraved by G. Magnetic variation of the needle in 1853: 15°40’E, noted in the lower right data block.

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Very Rare San Francisco Yacht Club Farallon Island Race 1939 P. Approximate measurements: 6 7/8″ in diameter (including the spires all around it; the base itself, excluding the spires, is 5″ in diameter). It weighs approximately 14.5 Ounces. It’s quite heavy (14.5 Oz) for its size and is solid metal-appears to be copper or bronze. Around the outer rim, it says: S. Farallon Island Race, in bold, large, raised lettering, all in caps. Allen , all in caps. It’s very old, and it shows its age, but it’s in excellent condition, is structurally sound, and completely intact and durable. It has a loop on it on its back side (not added-all original) for hanging. Again, please accept my apologies for this statement. It’s only directed toward “the 1%”. This item is in the category “Collectibles\Souvenirs & Travel Memorabilia\United States\California”. The seller is “g-trek” and is located in this country: US. This item can be shipped to United States, Denmark, Guatemala, Fiji, Papua New Guinea, Solomon Islands, Vatican City State, Sierra Leone, Nauru, Wallis and Futuna, Anguilla, El Salvador, Gambia, Dominican Republic, Malaysia, Cameroon, Guyana, Taiwan, Azerbaijan Republic, Poland, Macau, Georgia, Oman, Suriname, Tonga, United Arab Emirates, Kenya, Argentina, San Marino, Guinea-Bissau, Armenia, Uzbekistan, Bhutan, Eritrea, Senegal, Togo, Saint Kitts-Nevis, Morocco, Ireland, Qatar, Burundi, Saint Vincent and the Grenadines, Netherlands, Slovakia, Slovenia, Equatorial Guinea, Thailand, Mauritania, Belize, Philippines, Aruba, Democratic Republic of the Congo, Republic of the Congo, Sweden, Colombia, Iceland, Spain, Macedonia, Estonia, Belgium, Israel, Liechtenstein, Kuwait, Benin, Algeria, Bermuda, Montserrat, Zambia, South Korea, Antigua and Barbuda, Vanuatu, Ecuador, Albania, Swaziland, Italy, Ethiopia, Monaco, Niger, Tanzania, Laos, Pakistan, Burkina Faso, Panama, Singapore, Kyrgyzstan, Ghana, Switzerland, Djibouti, Chile, Cape Verde Islands, China, Moldova, Mali, Botswana, Republic of Croatia, Cambodia, Madagascar, Saint Pierre and Miquelon, Indonesia, Portugal, Tajikistan, Vietnam, Malta, Cayman Islands, Paraguay, Saint Helena, Lebanon, Cyprus, Seychelles, Liberia, Rwanda, Bangladesh, Bolivia, Maldives, Australia, Austria, Gibraltar, Sri Lanka, Hong Kong, Central African Republic, Gabon Republic, Lesotho, Nigeria, Zimbabwe, Mauritius, Saint Lucia, Jordan, Bulgaria, Guinea, Czech Republic, Norway, Côte d’Ivoire (Ivory Coast), Canada, Turks and Caicos Islands, Chad, Kiribati, Andorra, Turkmenistan, Grenada, Greece, Romania, Costa Rica, Haiti, India, Greenland, Mexico, Afghanistan, Serbia, Kazakhstan, Montenegro, Saudi Arabia, Mongolia, Japan, Nepal, Bahamas, Lithuania, Bahrain, Trinidad and Tobago, United Kingdom, Malawi, Bosnia and Herzegovina, Hungary, Angola, Nicaragua, Finland, Tunisia, Uganda, Luxembourg, Turkey, Western Samoa, France, Germany, Egypt, Latvia, Jamaica, Mozambique, Namibia, Peru, South Africa, Brunei Darussalam, Honduras.

• Type: BRONZE MEDAL
• Region of Origin: California
• Country/Region of Manufacture: United States
• Modified Item: No

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