Catalogue Page from Exhibition Catalogue: 1911 Fifty-sixth Annual Exhibition of the Royal Photographic Society of Great Britain

showing (E11A069) Exhibit no. [973]: Patent Electric Lantern Microscope and Micro-Polariscope, fitted with Quadruple 5 in. Primary Condensers, Large Alum Cell, Removable Diaphragms, Rotating Polarising prism, complete by Newton & Co. ()