Zeiss Ikon Haemometer Rectangular case with brass front locks and a hinged lid, internally lined with green velvet. The set includes a haemometer, comprising an eyepiece and a rotating coloured disc for comparison with the sample, which is placed in a square opening, alongside a lever. Also included are instructions, a square-section tube, a mixing pipette, a cleaning rod with a square rubber tip, and a watch glass. 1925-1975