The first five negatives of images used in Shackleton's Heart of the Antarctic and from the cropping of the quarter-plate of the landing place, these are probably Marshall's plates used for the publication. For the Koonya tow, see the positive illustrated with lot 171, the photograph the inspiration for Robinson's large watercolour. The plate showing the southern reaches of the Great Ice Barrier is of a panorama no one had ever seen before and showed Shackleton the route to the Pole. They were now travelling 'beyond all former footsteps'. The photographs of Christmas Camp was taken by Shackleton: 'We had lunch then, and I took a photograph of the camp with the Queen's flag flying and also our tent flags, my companions being in the picture'.