Royal Aero Club of the United Kingdom, Royal Aero Club (Great Britain) · [London : s.n.] · leaf 231
November 11, 1926 … the automatic period, it is only necesszry to push the negative are contained in a box, forming a complete and button “ D ” when the dial ” E ” indicates that the shutter separate unit, which can be removed through a door in the is set. The fourth dial “ F ” indicates the total number of side of…
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
