1939. 14 b/w images, 7-7/8" x 9-7/8". Possibly unpublished; while it's entirely reasonable to expect these images may have been published in a small forum, such as in a government journal or report, initial research is unable to confirm such. Photographs with some minor curling at corners. Each with stamp to verso: "Mar 9 1939 / E.H.F." Item #44092
Initially appointed by President Taft in 1911, no doubt as a outgrouth of the North Pacific Fur Seal Convention of 1911, Christoffers served with the Bureau of Fisheries till the 1930s, rising to the position of Chief Warden. From mss notes on the back of each image, we see Christoffers is credited for photographing these 14 scenes, and presumably is also the author of the seal activity observations [often quite detailed] regarding each image [also recorded on the photograph verso].
The images show divers aspects of the herd, with the 'Bull' often featured, e.g., "The Harem Master. His favorite resting place a large rock from where he can commanad attention of his silver haired beauties, and keep an eye open for interlopers."