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2 Lenses by Ross, London...
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5 Wide-Angle Lenses by Ross, 1880–1900...
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Portrait Lens by A. Ross, London, c. 1853...
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"No. 3 Cabinet" by Watson & Sons, c. 1870...
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Portrait Lens by A. Ross, No. 1565 (!), c. 18...
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J.H. Dallmeyer Triple Achromatic Lens, c. 185...
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Dallmeyer Septac 1,5/2 in., c. 1950...
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Dallmeyer's Soft Focus "4.D. Patent" Lens, c....
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Soft-Focus Lens: Dallmeyer-Bergheim No. 2, 18...
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"Triple Achromatic Lens" by J.H. Dallmeyer, c...
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2 Rapid Rectilinear Lenses by Dallmeyer, c. 1...
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J.H. Dallmeyer "Triple Achromatic Lens", 1862...
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