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Maurer type photographic sunshine recorder, by Usteri-Reinacher, Th., Zurich, Switzerland, 1886-1893

Maurer type photographic sunshine recorder, 1886-1893

1886-1893
Bottle of de Trey's "copper" cement, by de Trey Bros., Zurich, Switzerland, 1925-1930

Bottle of de Trey's "copper" cement

1925-1930
Two boxed bottles of De Trey's thymozin, by De Trey Bros., Zurich, Switzerland, 1925-1930

Two boxed bottles of De Trey's thymozin

1925-1930
Bottle of 'Kri' obtundent paste, by Pharmachemie AG, Zurich (53), Switzerland, 1950-1965.

Bottle of 'Kri' obtundent paste

1950-1965
Bottle of "Kri" iodoform paste, for root dressing, by Pharmachemie AG, Switzerland, 1955-1970

Bottle of "Kri" iodoform paste

1955-1970
One Abdank Abakanowicz integraph no.41; large size with extra bar (42a), No.173, by G.Coradi, Zurich, Switzerland. Fitted box with key; accessories: two screw drivers, pencil, pen, small brass weight, brush, steel scale with needle point at one end and divided 0, 1", 2", 3", 4", about 4 1/2" long, small tommy

One Abdank Abakanowicz integraph no.41; large size with extra bar (42a)

1911
Integraph by Coradi No.10 in box

Integraph by Coradi No.10 in box

Madas electrically driven calculating machine no.12465, slider setting, capacity 9 x 9 x 16, with metal cover by H.W. Egli Limited, Zurich, Switzerland.

Madas electrically driven calculating machine no.12465

1935-1950
Coordinatograph by Coradi No.8 in box

Coordinatograph by Coradi No.8 in box

Amsler's integrator; in case with rail.

Amsler's integrator; in case with rail.

1856-1890
Coradi compensating planimeter, type: CORA-Senior, serial number 1358 with case.

Coradi compensating planimeter

"Millionaire" direct multiplication calculating machine No.2918, 1917

"Millionaire" direct multiplication calculating machine No.2918

1917
Electric accounting machine by Ruf Bookkeeping Ltd., Zurich, with Intromat 50 form inserter, instruction booklet and accessories (perforated-bar purchase ledgers, ribbons, sample forms, extension lead)

Electric accounting machine by Ruf Bookkeeping Ltd.

1925
Sectional model, scale 1:5, of a steam turbine for a torpedo-boat destroyer, patented by Dr. H. Zoelly in 1899, in glass case with key (see note), by Escher Wyss and Co Engineers. Zurich, c.1910

Model of a Zoelly Marine Turbine and Brass Plaque.

1910-1914
Payne-Coradi parabolograph (No.7) made by G.Coradi, Zurich, Switzerland, in case

Payne-Coradi parabolograph (No.7) made by G.Coradi

Curvimeter for English measure, by Coradi, no. 17, (no.44 of Coradi's catalogue), in box with example sheet

Curvimeter for English measure

1915
Traffic light kit to coordinate traffic at three- or four-way intersections in Duckietown, made by Frazzoli Laboratory, ETH Zurich, Switzerland, used for educational and demonstrative purposes in classes as part of the Duckietown Project, 2018-2019. Consists of four wooden 3D-printed modules to form tube holders, ground plates, and joints, tubes in four sections, three traffic signs, boxed Raspberry Pi 3B+ and Raspberry PI ground plate, boxed overhead camera, LED strip cable, boxed flat ribbon cable, boxed power supply cable, adhesive tape, and 32GB class 10 U3 mini SD card

Traffic light kit from Duckietown Project, 2018-2019

2018
Planimeter in case by G. Coradi, Zurich. 1894

Polar planimeter in case, 1894

1894
Motor-driven "Millionaire" calculating machine (on metal stand)

Motor-driven "Millionaire" calculating machine

1914
Pantograph by Coradi No. 525 in box

Pantograph by Coradi No. 525 in box

Smith Automatic Exposure Meter, made by Dr J H Smith & Co, Zurich. Slide rule calculator with slider or printed pink linen. Calibrated for: plate type; aperture; time; tables for subject and time of year and day. (M38)

Smith Automatic Exposure Meter

1910
J. H. Smith Universal Actinometer. Folder with instructions and tables, containing actinometer card with calculator. Manufactured by Dr J H Smith and Co., Zurich. (M37)

'Universal' Exposure Meter

1900
Boxed bottles of De Trey's thymozin, by De Trey Bros., Zurich, Switzerland, 1930-1960

Boxed bottles of De Trey's thymozin

1930-1960
Precision pantograph, fitted case with key, iron casting separate, (no.11 of Coradi's catalogue) instrument engraved "G. Coradi, Zurich, Switzerland, no.3534", type III, 60cm bars, no pen

Precision pantograph

Abdank-Abakanowicz integraph made by G. Coradi, Zurich, with extension tracer arm, two ink pens and one lead holder, in wooden box 16 1/2" x 22" x 7"

Abdank-Abakanowicz integraph made by G. Coradi

Curve compounder made by G. Coradi, in wooden box 13" x 16"

Curve compounder made by G. Coradi

Loga calculator (cylindrical slide rule) patented by Daemen-Schmid, Zurich

Loga calculator (cylindrical slide rule) patented by Daemen-Schmid

Prototype molecular models constructed for André Dreiding in the basement of the Institute of Organic Chemistry of the University of Zurich in 1958. They are not to scale and so differ slightly in size. Three first prototype units: 1 tetrahedral carbon, 1 carbon double bond, 1 oxygen. Two second prototype units: 1 nitrogen, 1 carbonyl.

Prototype molecular models constructed for André Dreiding

1958
Poster, Swiss Federal Railways, The St Gothard Electric Railway, by D Buzzi, 1924, depicting an electric train with mountains and village in background, printed by J E Wolfensberger, Zurich. Format: double royal. Dimensions: 40 x 25 inches, 1016 x 635mm.

The St Gothard Electric Railway

1924
Madas model BTX calculating machine serial No. 102199, by H.W. Egli Limited, Zurich, Switzerland and bag

Madas model BTX calculating machine serial No. 102199

1955-1965