| Herbert G. Ponting 520. P. Keohane on return from the Barrier, January 1912 [British Antarctic Expedition 1910-1913 (led by Scott on the "Terra Nova")] 1912, January Photograph, from glass plate negative Scott Polar Research Institute, University of Cambridge LL/86992 A platinum print made from this was included in a portfolio created by the Scott Polar Institute, University of Cambridge.
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