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German armillary sphere, 1542

German armillary sphere, 1542

1542
Gaede molecular vacuum pump

Gaede molecular vacuum pump

1910-1914
Wulf electroscope fitted with projection attachment consisting of lamp house

Wulf electroscope fitted with projection attachment consisting of lamp house

1950-1974
Gaede 3-stage metal diffusion pump

Gaede 3-stage metal diffusion pump

1915-1927
German armillary sphere, 1553

German armillary sphere, 1553

1553
Gaede single stage all-metal pump with accessories

Gaede single stage all-metal pump with accessories

1923-1928
Coin scales and weights

Coin scales and weights

1651
"Apis" matrix retainer

"Apis" matrix retainer

1970-1980
Nest of Cologne bronze standard weights, 1616

Nest of Cologne bronze standard weights, 1616

1616
Dental gauze

Dental gauze

1950-1970
Bottle for Eau de Cologne "4711"

Bottle for Eau de Cologne "4711"

Case for clinometer rule, German, 1885-1905

Case for clinometer rule, German, 1885-1905

1885-1905
Part of clinometer rule, German, 1885-1905

Part of clinometer rule, German, 1885-1905

1885-1905
Horn for Stollwerck chocolate disc phonograph, 1903

Horn for Stollwerck chocolate disc phonograph, 1903

1903
30 capsules of K.H.3 Geriatricum-Schwarzhaupt, by Schwarzhaupt, Cologne

30 capsules of K.H.3 Geriatricum-Schwarzhaupt, by Schwarzhaupt, Cologne

Central component and wax record for Stollwerck chocolate disc phonograph, 1903

Central component and wax record for Stollwerck chocolate disc phonograph, 1903

1903
Base for Stollwerck chocolate disc phonograph, 1903

Base for Stollwerck chocolate disc phonograph, 1903

1903
Microscope stand attributed to G.V. Schleenstein of Cologne

Microscope stand attributed to G.V. Schleenstein of Cologne

1771-1800
Wet gas meter, 3 light capacity, 368mm height x 300mm width x 275mm depth, in steel case painted green with gold lining, three areas glazed to reveal mechanism, by W H Moran, Cologne, serial no. 10202, 1861, with three dials measuring in 10s, 100s and 1000s of cubic feet, with hinged cover for the dials and three detachable metal covers to the glazed areas.

Wet gas meter, in steel case, with hinged dials cover and detachable metal covers

Model, scale 1:5, Pelton wheel turbine, by Peter Koch, Victor Gelpke and Paul Kagel, Germany, 1907-1917, represents an installation by Messrs. Amme, Giesecke and Konegen of Brunswick, invented by Lester Allan Pelton. Part sectioned to show Pelton wheel.

Pelton Wheel Turbine

1907-1917
Folding clinometer rule with case, by D. Mauch, Cologne, Germany, 1855-1865

Folding Clinometer Rule, 1855-1865

1855-1865
Boxed tube of "Balsalyt", by Dr. Madaus and Co. Cologne

Boxed tube of "Balsalyt", by Dr. Madaus and Co. Cologne

Double wire-loop oscillograph for studying the waveforms of electrical oscillations, by Leybold, c.1960

Double wire-loop oscillograph for studying the waveforms of electrical oscillations

1950-1974
Five specimens illustrating the Mannesmann process of solid drawing steel tubes.

Five specimens illustrating the Mannesmann process of solid drawing steel tubes

Condenser marked "No 615 E Leybold's Nachfolger AG Koln" used in work on electric dipole moments, 1930s

Condenser marked "No 615 E Leybold's Nachfolger AG Koln" used in work on electric dipole moments

1930-1939
Lens barrel with iris diaphragm calibrated 0-5 with 7 lens components 15/25/35/45/55/65/75. With 11 combinations for normal and wide angle use. Lens No 4629.

Janssen combination lens

Components of 1912-9

Components of 1912-9

1912
Large squat brass weight, with impressed design on top labelled, "Silbezlzen"?

Brass weight

1651
Rectangular wooden box for a set of coin scales and seventeen weights, box makers mark impressed inside, contents made by Matthias Mettman, a well known Cologne scalemaker, German, 1651

Coin scales and weights

1651
Metal water-jet filter pump (no.15220), sectioned, in two pieces, by E. Leybold's Nachfolger, Cologne, Germany, 1924-1934

Metal water-jet filter pump (no.15220)

1924-1934
Three specimens illustrating the Mannesmann process of solid drawing steel tubes.

Three specimens illustrating the Mannesmann process of solid drawing steel tubes

Square, flattish brass weight, with impressed design on top, labelled "1/2 Silberzlzen"(?)

Brass weight

1651
Square, flattish brass weight, with impressed design on top, illegible label above compartment

Brass weight

1651
Square, flattish brass weight, with impressed design on top, labelled "1/2 Razdicten"

Brass weight

1651
Large squat brass weight, with impressed design on top labelled, "Richellatt"

Brass weight

1651
Square, flattish brass weight, with impressed design on top, labelled "Ducat..1/2"

Brass weight

1651
Set of coin scales a in a rectangular wooden box (without weights see other parts), box makers mark impressed inside, made by Matthias Mettman, a well known Cologne scalemaker, German, 1651

Coin scales

1651
model, scale 1:5, Mannesmann's tube rolling mill

model, scale 1:5, mannesmann's tube rolling mill

1912
Square, flattish brass weight, with impressed design on top, labelled "Razdicten"(?)

Brass weight

1651
Double wire-loop oscillograph for studying the waveforms of electrical oscillations, by Leybold, c.1960

Double wire-loop oscillograph for studying the waveforms of electrical oscillations

1950-1974
Five sided rotary mirror mounted on a rod, for use with double wire-loop oscillograph

Five sided rotary mirror mounted on a rod

1950-1974
Two specimens illustrating the Mannesmann process of solid drawing steel tubes.

Two specimens illustrating the Mannesmann process of solid drawing steel tubes

Flat, square brass weight, with impressed design on top, labelled "1/2 Richetlatt"

Brass weight

1651
Square, flattish brass weight, with impressed design on top, 1/2 Ital Pistolet label

Brass weight

1651
Large squat brass weight, with impressed design on top, labelled "Pistolet"(?)

Brass weight

1651
Large square brass weight, with impressed design on top labelled, 'Matt'

Brass weight

1651
Square, flattish brass weight, with impressed design on top, labelled "1/2 Pistolet"

Brass weight

1651
Square, flattish brass weight, with impressed design on top, Ital Pistolet above compartment

Brass weight

1651
Pamphlet for the Janssen combination lens

pamphlet

Lined case.

lined camera case