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Lot Essay
Condition: 3
Cosmetic: Light signs of wear.
Harrison and Schnitzer's globe lens was the subject of British patent 2496 of 13 October 1860 and United States patent 35,605. Kingslake describes the lens as the 'best known of the early wide-angle symmetrical lenses'. The lens covered a semifield of 40 degrees.
Cosmetic: Light signs of wear.
Harrison and Schnitzer's globe lens was the subject of British patent 2496 of 13 October 1860 and United States patent 35,605. Kingslake describes the lens as the 'best known of the early wide-angle symmetrical lenses'. The lens covered a semifield of 40 degrees.