Adding machine: silver metal adding machine with iron stylus and magnet; machine has series of vertical rows with numbers on them; metal case is also…
Shallow, dark brown wooden box with two identical rectangtular rulers and 1 wooden triangle inside. Each ruler inscribed “Elliott Bros. London”. One rectangular ruler andtriangle…
Compound microscope. Black U-shaped metal base; black, regular swing-out bakelite stage with diaphragm and circular tilting mirrow below the stage; stand post is black below…
One sided flat mirror mounted to rotate in all directions by means of two semi-circular brass bars turned by worm gears and marked in degrees;…
Wooden box with purple velvet padding on interior for instrument parts. Steel knife with bend at joint between handle and blade (placed in interior of…
Base tripod: painted black metal which holds the vertical brass stand post. Brass “wheel”: attacehd to tstand post with brass ball joint; silver metal measurement…
A wooden box which contains a number of instrument pieces forming components that make up an optical bench. Fitted into the bottom of the box…
Black U-shaped metal base with black metal post; black Bakelite rectangular stage; beneath stage is a secondary lens system, both vertically and horizontally adjustable; circular…
Black U-shaped metal base; circular stage with 1 of 2 clip holders and 2 position screws; diaphragm below stage, beneath which is a lens system…
Circular brass base, inscribed “35”‘ vertical stand post; horizontal arm is labeled “L. GOLAZ /Constructeur” (left) and “24r des Fosses St. Jacques/PARIS 1879”; adjustable height,…