PHOTOGRAPHIC APPARATUS, MATERIALS, and PURE CHEMICAL PREPARATIONS.
KNIGHT & SONS' Illustrated Catalogue, containing Description and Price of the best forms of Cameras and other Apparatus. Voightlander and Son's Lenses for Portraits and Views, together with the various Materials, and pure Chemical Preparations required in practising the Photographic Art. Forwarded free on receipt of Six Postage Stamps.
Instructions given in every branch of the Art.
An extensive Collection of Stereoscopic and other Photographic Specimens.
GEORGE KNIGHT & SONS, Foster Lane, London.
CYANOGEN SOAP for removing all kinds of Photographic Stains. Beware of purchasing spurious and worthless imitations of this valuable detergent. The genuine is made only by the inventor, and is secured with a red label pasted round each pot, bearing this signature and address:—
RICHARD W. THOMAS, Chemist, Manufacturer of pure Photographic Chemicals, 10. Pall Mall, and may be procured of all respectable Chemists in pots at 1s., 2s., and 3s. 6d. each, through MESSRS. EDWARDS, 67. St. Paul's Churchyard, and MESSRS. BARCLAY & CO., Farringdon Street, Wholesale Agents.