Hints to travellers, scientific and general (1901)
Royal Geographical Society (Great Britain) · London, The Royal Geographical Society · leaf 471
v A dvertisements . DALLMEYER’S PORTABLE TELESCOPES. For Power, Durability, and Compactness, far excel any Binocular made. The No. 2 size, … DALLMEYER’S PHOTOGRAPHIC LENSES & CAMERAS for Travellers. Send for Illustrated Catalogue. CAMERAS BUILT TO SUIT INDIVIDUAL REQUIREMENTS. TELEPHOTOGRAPHIC LENSES and ATTACHMENTS. Indispensable for Mountain Work. Invaluable to Naturalists. Any good lens working at an intensity of not less than F / 8…
