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George Eastman House

1867

Trachyte Columns. Trinity Mo …

Timothy H. O'Sullivan

George Eastman House

1867

Syenites of Gold Canon-South …

Timothy H. O'Sullivan

George Eastman House

August, 1868

Quartzites, East Humboldt Mo …

Timothy H. O'Sullivan

George Eastman House

August, 1868

Quartzites, East Humboldt Mo …

Timothy H. O'Sullivan