a circular wooden lead weighted base with turned wooden leg terminating in an apparatus plate. The stand is telescopic with adjustment by a wooden screw
one of a pair, circular base weighted with lead, the vertical tapers upward from a bulbous bottom, terminating with a wing nut for holding a telescopic inner section of glass rod
a metal pedestal on a circular base with three mounting holes. The pedestal has a clamped attachment with an adjustable horizontal arm moved by a knurled thumbwheel. Specialised laboratory equipment
one of a pair, circular base weighted with lead, the vertical tapers upward from a bulbous bottom, terminating with a wing nut for holding a telescopic inner section of glass rod