Search Results
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Portrait of Leo Hendrik Baekeland (1863-1944)
- After 1920 – 1944
Portrait of Leo Hendrik Baekeland (1863-1944), inventor of Bakelite, the first fully synthetic plastic.
- Manufacturer Underwood & Underwood
- Subject Portrait photography, Inventors, Bakelite, Baekeland, L. H. (Leo Hendrik), 1863-1944, Plastics
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Photograph of Alfred and Eva Schnell
- After 1920 – before 1944
Photograph of Alfred Schnell (1900-1944), Eva Schnell (1913-1944), and Eva's mother seated in lawn chairs. Eva's mother is seated in the foreground.
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2 items
Naturalization Halted
- After 1938 – before 1944
Article (lower right) Naturalization Halted, reports that German and Italian immigrants are now considered to be "Enemy Aliens" in the United States and will no longer have access to naturalization. 450,000…
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Mortar and Pestles
- After 1868 – before 1944
Two sets of mortar and pestles belonging to Georg Bredig (1868-1944). The larger is made of white porcelain and the smaller is made from agate. Mortar and pestles are used to manually grind or crush a sample into a fine…
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2 items
Manual drafting set
- After 1868 – before 1944
Georg Bredig's (1868-1944) drafting set. The tools are held in a rectangular case, lined with dark blue velvet.
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2 items
Diamond Blue-White fabric dye
- After 1935 – before 1942
Blue and white cardboard box with a small paper packet of powdered fabric dye. The dye is intended for use on white fabric to enhance the fabric's brightness and prevent yellowing.
Fabric dyes are charged,…
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2 items
Bausch & Lomb Abbe Refractometer
- 1937 – 1941
A: Refractometer
Instrument has round base with black finish; on the base is a double-sided circular glass mirror mounted to allow full rotation; a black pillar supports the prism alidade, the black brass cylindrical…- Manufacturer Bausch & Lomb Optical Company
- Subject Bausch & Lomb Optical Company, Refractometers, Optics
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66 items
Notes on scrap paper kept by Max Bredig
- 1927-Feb – 1941-Aug
- Creator Of Work Bredig, Max Albert, 1902-1977
- Subject Bredig, Max Albert, 1902-1977
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Professor Wohler
- After 1840 – before 1940
A half-length portrait of Friedrich Wöhler (1800–1882), a German chemist.
- Artist Cook, Conrad
- After L'Allemand, Conrad, 1809-1880
- Subject Wöhler, Friedrich, 1800-1882
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New! Inexpensive continuous pH measurements with the Beckman glass electrode equipment!
- Bulletin No. 17
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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4 items
National Technical Laboratories staff
- 1938-Dec
- 1939-Dec
- 1940
The series of photographs depicts employees of National Technical Laboratories.
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Mysto Magic Show Set Advertising Poster
- 1930 – 1940
This two-color poster advertises a performance of magic tricks, as part of the Mysto Magic Show Set, manufactured by the A. C. Gilbert Company around 1940. The kit included theatrical makeup, props, and an instruction…
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2 items
Holiday card from Mr. and Mrs. Joseph Ruzek to Georg Bredig
- After 1890 – before 1940
A Christmas card featuring a black and white illustration of a winter nighttime scene. The view shows a snow-covered Karlsruher Schloss, or Karlsruhe palace.
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3M 51S
Hercules Powder Company tree stump handling in Brunswick, Georgia
- 1920 – 1940
Silent footage of Hercules Powder Company processing tree stumps at their Brunswick, Georgia plant for use in their cellulose products. Footage shows stumps being removed from railroad cars by crane and dropped into…
- Creator Of Work Hercules Powder Company
- Subject Cellulose industry, Hercules Powder Company, Chemical industry, Naval stores industry, Cranes, derricks, etc., Machinery
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18M 23S
Hercules Powder Company Woods Camp pine stump gathering
- 1920 – 1940
Silent footage of tree stump removal being done by Hercules Powder Company at an unknown location, likely in the southeastern United States. These stumps were removed using machinery and then transferred to a Hercules…
- Creator Of Work Hercules Powder Company
- Subject Hercules Powder Company, Cellulose industry, Tree stump removal, Machinery
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German Reich certificate of origin (for residence abroad)
- Deutsches Reich Heimatschein (für den Aufenthalt im Ausland)
- 1939-Oct-19
- 1940 (Canceled)
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DuPont Pyralin travel vanity set
- 1910 – 1940
Irregularly-shaped wooden box with blue and off-white synthetic coatings; box is secured with two steel snap fasteners; top opens upward and is held upright with a cloth ribbon on the left side; top and bottom of box…
- Manufacturer E.I. du Pont de Nemours & Company
- Subject Plastics, Celluloid, E.I. du Pont de Nemours & Company
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2 items
Christmas card from Mr. and Mrs. Joseph Ruzek to Georg Bredig
- After 1890 – before 1940
A Christmas card featuring a black and white illustration of a large adorned Christmas tree at the Rondellplatz, or the city square of Karlsruhe, Germany.
- Addressee Bredig, Georg, 1868-1944
- Author Ruzek, Joseph, 1903-1956
- Subject Christmas, New Year, Greeting cards, Germany--Karlsruhe, Ruzek, Joseph, 1903, Bredig, Georg, 1868-1944
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3 items
Christmas card from Mr. and Mrs. Joseph Ruzek to Georg Bredig
- After 1890 – before 1940
A Christmas card featuring a black and white illustration of the Rondellplatz, or the city square of Karlsruhe, Germany.
- Addressee Bredig, Georg, 1868-1944
- Author Ruzek, Joseph, 1903-1956
- Subject Greeting cards, Christmas, New Year, Germany--Karlsruhe, Ruzek, Joseph, 1903, Bredig, Georg, 1868-1944
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4 items
Chemie für Alle
- Chemistry for E17 veryone
- After 1920 – before 1940
Advertisement booklet from Dieck & Company, collected by Georg Bredig (1868-1944). The booklet advertises the titles Chemie für Alle, Elektrotechnik für Alle, and Physik für Alle .
- Publisher Dieck & Co.
- Subject Chemistry, Publishers and publishing, Electrical engineering, Physics, Textbooks
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2 items
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3 items
Beckman pH Meter (Laboratory Model) brochure
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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3 items
Beckman pH Meter (Industrial Model) brochure
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…
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4 items
Beckman pH Meter (Glass Electrode) brochure
- 1935 – 1940
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…