London, J.H. Dallmeyer Limited, [circa 1937].
Octavo,  leaves with numerous illustrations.
Overlapping card covers (a looseleaf folder with metal fasteners) lightly bumped at the extremities; small ownership inkstamp on the front cover and several pages; an excellent copy.
J.H. Dallmeyer Limited, 'Manufacturers and Patentees of Photographic, Cinematograph Lenses, Cameras and Scientific Apparatus', was established in 1860.