Catalogue of apparatus and materials required in the practice of photography, including both plate and paper processes : manufactured and sold by George Knight and Sons, philosophical instruments makers, &c., Foster Lane, Cheapside, London : illustrated with woodcuts (1851)
George Knight & Sons, author · London : George Knight and Sons · leaf 21
PARALLEL MIRRORS, &c. 17 … £ s. d. PARALLEL MIRRORS. Parallel Mirrors, to attach to the front of the lenses, in order to take portraits, views, &c. in correct position. (Fig. 12.) No. 1. Mounted in brass. Size of mirror, by 3§ 1 15 0 No. 2. „ „ 2| by 3f No. 3. ,, 4| by 5£ Ditto mahogany ditto Improved Dark Boxes for carrying…
George Knight & Sons · Photography
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