Stand, box and weights from set of scales, beam missing, with 2 brass pans, a glass pan and 2 metal pair holders, probably English, 1801-1900 Stand, box and weights from set of scales 1801-1900
Specimen of bark of Erythrophyllum guiniense, Sassy bark, used for making poison, Sudan and North East Congo, on stand, 1900-1937 Specimen of bark of Erythrophyllum guiniense 1900-1937
Set of 6 test tubes, each with a glass cap, set upright in a test-tube stand made from glass and wire, used by Lister in his experiments on lactic fermentation, circa 1877 Set of 6 test tubes