Provisional catalogue of the "N. and G." hand cameras and shutters (1890)
Newman & Guardia (Firm), author · London : Newman and Guardia · leaf 12
[ 8 ] 5) Standard -j-fand-^amera. … Fig. 6. — Camera closed. Fig. 7. Camera open, to show fittings. Fig. 9.— Index Plate. a. Pointer of Pneumatic Regulation b. Iris Diaphragm Scale. c. Hand Release. d. Socket for Pneumatic Release e. Catch for “ time ” exposures. f. Locking Springs. Fig. 8. — Front, showing Shutter, Self-cap, &c.