Kaufmann Posograph in case - For photography
Developed by Auguste Robert Kaufmann, the posograph was designed to determine the exposure time for photography according to the shooting conditions.
From 1921-1930
Kaufmann posograph in case - For photography
Developed by Auguste Robert Kaufmann, the posograph is designed to determine the exposure time for photography according to the shooting conditions.
It is a manual, mechanical exposure meter, adjusted by moving the metal sliders all around the plate, which are interconnected. You slide the little tabs on the outside of the frame and the correct settings for the camera are displayed. Each movement of the slider has more or less influence on the others. A complex internal diagram ensures the connections. This is an extremely ingenious mechanical calculator.
One side of the plate is printed for outdoor shots, the other for indoor shots. It's extremely precise!
The result is almost a work of art, presented in an attractive leather pouch bearing the name of the POSOGRAPH camera.
Patented in 1921 - It was sold for a decade until the early 1930s, when the first electronic posemeters began to appear on the market and gradually replace it.
Dimensions of the Posograph: 13x8.5cm
Case dimensions: 13.5 x 9.8 cm
Some imperfections at the bottom of the plates: see photos
Nitrate d'Argent
Antique glass dropper in white glass - Content: 30ml
Apothecary - Pharmacy
Antique study mask by Simonne Laubé, circa 1930
Flayed model
In vulcanized and painted rubber
Inspired by the famous death mask from L'Inconnue de la Seine
Mineraline by Dr C. Baud
Antique tin pharmacy box
Powder or talcum powder for children's toiletries
Cardibain - With Ouabain - POISON
Antique pharmacy bottle - Apothecary
Empty
Antipyrina Knorr
Named after its German discoverer: Ludwig Knorr
Pharmacy jar - Herbalism - Apothecary bottle
Late 19th century
Naturalized Small-spotted catshark
Scyliorhinus canicula
Génial Lucifer - Bicycle license plate circa 1930 (means Great Lucifer)
Blue painted enamel brass plate circa 1930
Hydrogen peroxide
Antique pharmacy bottle
Apothecary vial
Orthoforme
Antique pharmacy bottle - Droguerie - Apothicaire
Silver medal at Paris 1889
Archimedes screw magnifier - Photographer's Achromatic focusingmagnifier
Photographer's magnifying glass from the late 19th century, early 20th century
When taking a photograph, the photographer would use this focusing magnifier against the frosted glass of his camera to assess the sharpness of the image formed.
Camphorated oil
Antique pharmacy bottle
Apothecary vial
EMPTY but cap is blocked and bottle will not open
Art Nouveau candlestick in bronze
Leaves, bunches of grapes and snail motifs
Late 19th century - Early 20th century
Antique drum microscope for botanist, entomologist
Mirror missing
Late 19th century, early 20th century
Iron filings
Antique pharmacy bottle - Apothecary
Ancient engraving -board of Natural History in colour nineteenth century
Botany plate by Édouard-Adolphe Duchesne
From the Atlas du Répertoire des plantes utiles et des plantes du globe published in 1846
19th-century color lithograph
Kaufmann Posograph in case - For photography
Developed by Auguste Robert Kaufmann, the posograph was designed to determine the exposure time for photography according to the shooting conditions.
From 1921-1930
