006040
Photograph 006040 Second World War, 1939-1945WITH THE AID OF THIS DIAMOND CUTTING MACHINE BEING OPERATED HERE BY ITS DESIGNER MR. R. CALDWELL, SENIOR MECHANIC, THE GLASS CAN BE CUT TO ANY DESIRED SHAPE. (NEGATIVE BY E.L. CRANSTONE).

The Australian War Memorial Collection. Test site
THE OPTICS OF THIS TELESCOPE FOR A MILITARY DIRECTOR WERE CALCULATED BY MR. R.D. HILL (LEFT) WHO IS HERE DISCUSSING MECHANICAL CONSTRUCTION WITH SENIOR MECHANIC H.A. WATERS. (NEGATIVE BY E.L. CRANSTONE).
WITH THE AID OF THIS DIAMOND CUTTING MACHINE BEING OPERATED HERE BY ITS DESIGNER MR. R. CALDWELL, SENIOR MECHANIC, THE GLASS CAN BE CUT TO ANY DESIRED SHAPE. (NEGATIVE BY E.L. CRANSTONE).

A SIGHTING TELESCOPE DESIGNED BY MR. F.H. CALDWELL. (NEGATIVE BY E.L. CRANSTONE).

OPTICAL MUNITIONS PANEL - MELBOURNE UNIVERSITY. W. CALDWELL, SENIOR MECHANIC WITH A DIAL SIGHT, THE MECHANICAL PARTS OF WHICH HE CONSTRUCTED. (NEGATIVE BY E.L. CRANSTONE).

PROFESSOR LABY - PROFESSOR OF NATURAL PHILOSOPHY AND CHAIRMAN OF THE OPTICAL MUNITIONS PANEL, IS HERE EXAMINING A MILITARY DIRECTOR. (NEGATIVE BY E.L. CRANSTONE).

PROFESSOR LABY - PROFESSOR OF NATURAL PHILOSOPHY AND CHAIRMAN OF THE OPTICAL MUNITIONS PANEL, IS HERE EXAMINING A MILITARY DIRECTOR. (NEGATIVE BY E.L. CRANSTONE).

MT. STROMLO, MAKING OF LENSES FOR MILITARY INSTRUMENTS: COMPLETED LENS IS FITTED TO PARTICULAR GUN SIGHT. MR. H. BANHAM - SENIOR MECHANIC ON THE PERMANENT OBSERVATORY STAFF FITS THE LENS TO A MILITARY
