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Filtering by: Series Series 6: Glass Negatives People Colton, Allen Lysander, 1857- Place Lick Observatory

$36-inch refractor, the "Great Lick Refractor": detail view of mount with astronomer A.L. Colton$

$36-inch refractor, the "Great Lick Refractor": detail view of mount with astronomer A.L. Colton$

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