A spectrocolorimeter is a form of spectrophotometer that can calculate tristimulus values, or the the light intensity of primary color values in a sample.

A black, aluminum dye box with a pry-off lid decorated by green text and the Badische Anilin- & Soda-Fabrik insignia.

Black and white photograph showing the interior of a dye laboratory of the General Dyestuff Corporation, likely in Providence, Rhode Island.

Red and grey fabric dye box with a paper dye packet containing Rit brand, all-purpose grey powdered fabric dye. All-Purpose Rit dye was introduced in 1941. This development gave the dye an affinity for synthetic…

Black cardboard box with a bright yellow design containing neon fabric dye. Dye instructions are printed in white on the back of the box. The powdered dye is contained in a paper packet. Dye instructions are also…

An advertisement included in a 1968 issue of Seventeen Magazine shows three women in brightly colored, Maidenform brand neon undergarments.

Eighteen dyed and undyed fabric samples made of Dacron and Antron fibers mounted in a tri-folded cardboard booklet.

Twenty-four dyed Dacron samples attached to a bi-fold cardstock brochure.

Four skeins of yarn, connected in bundles of two. Each has been skein dyed with General Aniline & Film Corporation dye, 1% Acid Alizarine Brown RRL-CF and 1% Supralan Grey BRLS-CF. There is a paper label attached to…

A booklet produced by the General Dyestuff Corporation, a sales division of the General Aniline & Film Corporation. Includes 16 mounted dyed nylon fabric samples on three cardstock pages, dyeing method instructions, and…

Sample book for dyeing solutions on wood from the Interessengemeinschaft Farbenindustrie Aktiengesellschaft, a German chemical and pharmaceutical conglomerate. Contains dyeing instructions and sixty-four mounted wood…

Adjustable mauve colored cotton self-tie bow tie.

Tin container of powdered henna pigment manufactured by S. B. Penick & Company. Henna is a dye prepared from the plant Lawsonia inermis, also known as the henna or mignonette tree. Whole henna leaves must be dried and…

General view of the control panel of a Bendix Corporation Model 1076A Chromatograph Manifold Inlet System designed for use with a Bendix Time-of-Flight Mass Spectrometer. Inlet systems are typically used to introduce…

This model followed in the tradition of the DU, the first ultraviolent/visible spectrum spectrophotometer.

The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called…

Beckman's Model 24 was a double-beam visible light spectrophotometer.

Beckman's Space Engineering Group designed and built "the Moonspoon," a prototype instrument to sample and analyze lunar soil via absorption spectroscopy.

Beckman's Space Engineering Group designed and built "the Moonspoon," a prototype instrument to sample and analyze lunar soil via absorption spectroscopy.

This instrument was created in 1968 by Beckman Instruments' Advanced Technology Operations (ATO) specifically for measuring the effect of space flight on calcium and creatinine levels in astronauts' urine. Colorimeters…

Colorimeters are used to quantify the concentration of a solute in a solution by measuring the absorbance of a particular wavelength or color of light by the solution.

Employees Matt Quigley (left) and Tom Balchin (right) holding a copy of the "Crompton & Knowles Computer Fashion Shades" catalog. This photograph was taken at the Crompton & Knowles Customer Service Laboratory in…

Bruce Billman using a Perkin-Elmer Atomic Absorption Spectrophotometer to test the metal content of a dye solution. This photograph was taken in the Analytical Section Laboratory at the Crompton & Knowles Research…

View of the Library and Information Retrieval Quarters at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. Seated are researcher John King (left) and Elizabeth B. Hamf (Literature Chemist) at right.
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View of a chemist in a two-person laboratory module for the synthesis and testing of dyes and chemicals at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania.

Based in Worcester, Massachusetts, Crompton…

Exterior of the new Crompton & Knowles Corporation Research Center in Gibraltar, Pennsylvania. The Research Center housed laboratories for research and development in dyes and chemicals for the textile, paper, leather,…