Hexagonal-shaped clear Lexan bottle with a cardboard casing/label; black plastic lid with a dark amber nipple.

Lexan is a resin thermoplastic discovered by General Electric chemist Dr. Daniel Fox in 1953. It is similar…

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over).

Round glass bottle with glass stopper; label attached to front identifies manufacturer and contents (label has been waxed over); bottle is half full with original dye.

Round glass bottle with cork stopper; label attached to front identifies manufacturer and contents (label has been waxed over); bottle is half full with original dye.

Wooden box with metal instrument inside; instructions attached to top of box; instrument has a gauge and three turnable knobs; space along side has a power source and an electrode that is used for measuring; plaque on…

Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, and a mechanism for raising and lowering the sample cups on a focusing rail; metal knobs on each side control the height…

Irregularly-shaped piece of foam-like silver plastic; pieces of twisted copper wire are holding some portions together; bottom has a wax or glue-like material coating it; some areas have a blackened, charred appearance.