This liquid chromatography recording detector system consists of a dual-beam spectrophotometer, a pH meter, and a conductivity cell.

Contains a listing of available benzo color dyes.

Eighteen soap samples, each colored with a different dye combination manufactured by the National Aniline and Chemical Company. Includes a description of the soap's composition and the method of dying.

A - Old Gold
B - Gold
C - Plum
D - Silver Gray
E - Maroon
F - Old Rose
G - American Beauty
H - Silver Gray
I - Black
J - Bright Green
K - Old Rose
L - Golden Brown
M - Olive Green
N - Mahogany
O - Olive Green
P - Olive…

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

Piece is bound in stained veneer and consists of 20 veneer samples interleaved with printed parchment.

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.

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.

Black and white photograph of a dyestuff laboratory. Pictured equipment may be dyestuff dryers.

A publication showcasing the laboratories, apparatus, machinery, and personnel of the New Jersey Zinc Company. Intended to present the company's research facilities in Palmerton, Pennsylvania used for zinc pigment…

Round glass bottle with glass 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).

Sample book with dyeing instructions and 32 mounted fabric samples.

Glass plates with spectrum image. Several of the spectra plates are labeled with wavelengths on the front and back.

This chromatography instrument was first manufactured in the mid-1960s. It allowed operators to run several analyses at once and print out results, instead of compiling them separately. Components included pH and…

This liquid chromatography recording detector system consists of a dual-beam spectrophotometer, a pH meter, and a conductivity cell.

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.

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.

Three rounded glass bottles with cork stoppers filled with unidentified colored powders in green, purple, and orange. One bottle of sulphanthrene pink F.F., a fast-vat dye manufactured by the E.I. du Pont de Nemours &…