approximately 132 cards from the 1950s and 1960s, all reporting observations of water height to the Water Resources Branch of the Department of Northern Affairs and Natural Resources, postmarks include Carcross, Carmacks, Dawson, Destruction Bay, Fort Liard, Haines Junction, Mayo, Mayo Landing, McCabe Creek, Ross River, Stewart River, Swift River, Teslin, Watson Lake, and Whitehorse, moderate duplication, generally very fine, accompanied by Don Glickstein's 2022 article about the history of these cards, inventory available upon request