Fonds consists of photographs, almost exclusively glass negatives, taken by Cogswell primarily as a professional photographer and proprietor of A.R. Cogswell and Co., Halifax. Includes advertising products; portraiture; group photographs; military personnel and ceremonies; Halifax buildings, churches, streets, and scenes; various Nova Scotia communities; panoramic views of Halifax Harbour, Purcells Cove and Waverly; traditional Mi'kmaq dwellings and dress; wreck of the S.S. Knight Bachelor; a few portraits of Cogswell and his wife; and an early x-ray photograph. 1992-414