CAM was a kind of bible for Canadian military mechanics during the Second World War - but it's equally notable for its fine graphic art covers.
Several issues can be found online now at
http://wartimecanada.ca/document/wor...al-maintenance
Canada, NDHQ, Directorate of Mechanical Engineering, CAM 2/6 (March - April 1945); 2/8 (June 1945); 2/9 (July - August 1945); 2/10 (September 1945)
HTH,
Hanno