Negretti & Zambra, 1885-1886 (ca), Frontispiece for "Negretti & Zambra's encyclopaedic illustrated and descriptive reference catalogue of optical, mathematical, physical, photographic, and standard meteorological instruments, manufactured and sold by them. Revised edition" (London), Frontispiece, Stockholms Auktionsverk, LL/43530
Negretti & Zambra 1885-1886 (ca) Frontispiece for "Negretti & Zambra's encyclopaedic illustrated and descriptive reference catalogue of optical, mathematical, physical, photographic, and standard meteorological instruments, manufactured and sold by them. Revised edition" (London)