Cells and lids

Rectangular translucent glass optical cells with one open side, translucent glass cell lids with two rectangular layers, one slightly larger than the other and other glass and metal accessories including five fuses. Some cells are inscribed with the makers name, 'HILGER'. The cells, lids and accessories are contained within a black synthetic covered hinged box divided into compartments and lined with blue synthetic velvet. The cells are for use with tintometers and other similar equipment.