72 stereoscopic glass slides in seven boxes; taken by QMS Ernest Stevens of the Seaforth Highlanders in India 1910 (c).
Box 1: Delhi Durbar; box 2: Chaubattia; box 3: Seaforths on the march etc; box 4 Agra and Taj Mahal; box 5: Simla; Box 6: family

Stereographs consist of two identical photographs paired in such a way that when seen through a special viewing instrument, a stereoscope, they appear as a three-dimensional images. By 1899 the photographs were mounted on thick card that was given a slight curvature to increase the illusion of depth.