Microscope - Ancien micromètre optique scientifique , pierre rare - 1850-1890 - France #19th century #antique scientific instrument #collectible microscope #french scientific tools #laboratory equipment #microscope #optical micrometer
Ebulliometer - malligand et fils - Brass - 1850-1900 - Ebulloscope #19th century science #antique scientific #boiling point measurement #brass instrument #chemical analysis #ebulliometer #ebullioscope #laboratory equipment
