O prefix [graphic material]

The b&w safety negatives for these photographs can be found in CANADA. DEPT. OF NATIONAL DEFENCE 1967-052 DND box 157 (items Old O1 to O- 05602); box 158 (items Old O-5603 to Old O-6688; New O-6-1 to O-591-9); box 159 (items New O-591-10 to O-1071-302); box 160 (items New O-1071-303 to O-1755-45); box 161 (items New O-1755-46 to O-5214); box 162 (items New O-5215 to O-9083); box 163 (items New O-9084 to O-9204).

The original envelopes for Old O prefix, including some photographs, can be found in CANADA. DEPT. OF NATIONAL DEFENCE 1970-170 box 95.

The original envelopes for New O prefix, including some photographs, can be found in CANADA. DEPT. OF NATIONAL DEFENCE 1967-052 box 96 (items O-6-1 to O-836-1); box 97 (items O-837-1 to O-1071-491); box 98 (items O-1071-492 to O-1696-2); box 99 (items O-1721-1 to O-5111); box 100 (items O-5112 to O-8799); box 101 (items O-8800 to O-9198).

This prefix is not to be confused with the other 'O' prefix (see Mikan 4532467), which consists of photographs created by the Canadian War Records Office during World War I.