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 29
CLEANING AND POLISHING APPARATUS. 23 Fig. 28. Fig. 29. … £ s. d. Knight’s Plate Holder. (Fig. 28.) 0 7 0 For plates np to 3| by 2f 0 8 0 ,, 4£ by 3^ 0 10 0 „ 6J by 4f ,, 8| by 6£ 0 12 0 This consists of a block of hard wood about one inch thick, and a trifle smaller than the plate to be polished, so as to allow the latter when fixed to it to project all…
George Knight & Sons · Photography
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