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Plate I. Blossom Rock, in San Francisco Harbor, California.
2992.024
pilot3
Plate I. Entrance to San Francisco Bay, California, showing the Position of Blossom Rock from a Coast Survey Chart, 1859. Scale: 1:50,000.
1859
1870
U.S. Coast Survey
Government Printing Office
38 × 27 cm
1 : 50000
