B&W image of a SAGE magnetic drum unit. The unit has been pulled out of its location in the computer main frame. A man is standing in front pointing to the unit.
Verso: attached paper; "PL-151001 " AND THIS IS ONLY ONE OF THE TWELVE" ... Mr. Ron Lorenson, Field Engineer for the IBM Corporation points to one of the 12 magnetic drums used to store the vast amount of data necessary to run the air defence battle within the Ottawa Sector and Northern NORAD Region. Mr. Lorenson is just one of the many IBM technicians who train both USAF and RCAF personnel in maintenance and operation of the SAGE computer at North Bay."
