Eighteen photographs and one photocopy of the interior and exterior of the steam plant (building 27) at CFB Trenton. Ross Masters (the donor's father) worked at the plant.
Slides made by Rudolf Donninger during his time in Belleville, Ontario, working at Northern Electric. They include photographs of buildings in Belleville, rural scenes, cars, a parade and the Belleville Fair in 1970, winter scenes, Ottawa and Kingston views, and aircraft at the Trenton Air Show.