Sunshine Recorder for Tropical Latitudes by Casella, 1925
Sunshine recorder frame, for tropical latitudes, with spherical lens, M.O. pattern, by C.F. Casella and Co. Ltd, London, England, 1925.
Sunshine recorder frame, for tropical latitudes, with spherical lens, M.O. pattern, by C.F. Casella and Co. Ltd, London, England, 1925.