36 inch Lick telescope, Lick Observatory, California, USA, 1915.

Photograph of the 36 inch refracting telescope at the Lick Observatory on Mt Hamilton, California in the United States. Built by the American company of Warner & Swasey Ltd with optics by Alvan Clark & Sons, the telescope was completed in 1888. This telescope was the primary instrument of the new institution, the first permanent mountaintop observatory to be built. The whole observatory was funded through a gift from James Lick (1796-1877), a businesman who made a fortune in real estate.