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| Figure 7. Plate IV
from the Dohrmann auction catalogue (1886) showing mostly California gold specimens: (37) Grit mine, El Dorado County; 3.18 cm (38) Grit mine, El Dorado County; 6.35 cm (43) El Dorado County; 3.18 cm (44) El Dorado County; 2.86 cm (46) Byrd's Valley, Placer County; 3.81 cm (47) near Forrest Hill, Placer County; 2.54 cm (64) Grit mine, El Dorado County; 7.62 cm (67) Butte County; 4.45 cm (68) Gravel mine, Oregon; 4.45 cm (69) Colorado; 3.81 cm |