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

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…

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.

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…

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 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…

View of a secretary using a Termatrex Information Retrieval System at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. The system utilized punch-cards and a chemical identification code devised by…

View of Laboratory No. 4 at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. The photograph shows a typical laboratory layout, including bench arrangement for easy access to the outward-opening door.…

View of Laboratory No. 1 at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. The photograph shows a typical two-person laboratory set-up for a chemist and technician, including partitioned office space…

Research Director George Garcelon inspects a portable temperature monitoring and control device at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. The device was used to regulate chemical reactions as…

View of chemist Dr. James F. Feeman filtering a dye slurry into a filter sink at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. The sink, made entirely of polyethylene, prevented the breakage of…

View of chemist James F. Feeman using a portable pH meter, designed by the Althouse Chemical Company, in a laboratory at the Crompton & Knowles Research Center in Gibraltar, Pennsylvania. A special stirring table for…

Leo Labrecque using a Launder-O-Meter to test the wash-fastness of dyed fabric. Bottles containing a standard weight of fabric in a standard soap solution are visible both within and outside of the machine. During the…

General view of the Customer Service and Quality Control Laboratory at the Althouse Chemical Company plant in Reading, Pennsylvania. The employees visible in the photograph are, from left: Tom Margolillo; Dot Bowen;…

View of employee William White examining a Weather-O-Meter at the Althouse Chemical Company Customer Service and Quality Control Laboratory in Reading, Pennsylvania. To the left of the Weather-O-Meter are two…

View of Warren Crowther removing a skein, a length of yarn wound in a loose coil, from the cylinder of a pressure-dyeing machine used for the application of colored dyes. This photograph was taken at the Althouse…