This accession consists of two copies of a general letter from Commissioner Stuart M. Hodgson declaring 1970 to be the centennial for the Northwest Territories. These letters were carried by dog sled to fourteen communities in the Mackenzie basin as part of the Centennial Western Dog Sled Mail Run. They are postmarked Inuvik and addressed to the Centennial Centre in Yellowknife.

This accession consists of a copy of the stamp exhibit entitled "Postal History of Mining in the Northwest Territories". It is 64 pages in length and was compiled by Kevin O'Reilly and submitted to the spring stamp show in Edmonton, 1989. The exhibit contains covers and postcards from 1898 to 1985, relating to mining in the Northwest Territories. Text accompanies each item.

This accession consists of nine First Day Covers. Three (0001-0003) semi-official air mail stamps, 2 issued by Western Canada Airways Ltd. in 1927 and 1 issued by Commercial Airways Ltd. in 1929 and six envelopes with stamps showing the 1932 inaugural flights between Fort Resolution, Rae and Great Bear Lake. They were originally collected by Dr. J. Alex Campbell.

This accession consists of one envelope bearing a postmark stamped 30 June 1989, the last day of business for the first Frame Lake South Post Office operated in Yellowknife.

This accession consists of 5 sheets of postage stamps commemorating the centennial of the Northwest Territories.

This accession consists of first day covers of the first official airmail flights from Fort McMurray to Aklavik.

Records include a first day cover commemorating the first official flight from Coppermine [Kugluktuk], Nunavut to Cameron Bay, Northwest Territories.

This accession consists of 66 first day covers that were carried on inaugural postal service flights to many communities in the Mackenzie District. They were originally collected by Frank McCall.