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A 19th century French, tellurion (tellurium), a clock, typically of French or Swiss origin

ARP24A00_352

A 19th century French, tellurion (tellurium), a cl...

Ivan Petrovich Kulibin

ARP23A15_074

Ivan Petrovich Kulibin

A valve mechanism of a hydrogen balloon

ARP23A12_419

A valve mechanism of a hydrogen balloon

Engraving depicts threshing with horses in Spain

ARP23A14_053

Engraving depicts threshing with horses in Spain

The mechanism of an air pump

ARP23A15_341

The mechanism of an air pump

Illustration of an nineteenth century cog and gear mechanism

ARP23A16_111

Illustration of an nineteenth century cog and gear...

Engraving depicts threshing with horses in Spain

ARP23A14_054

Engraving depicts threshing with horses in Spain

Illustration of an nineteenth century cog and gear mechanism

ARP23A16_104

Illustration of an nineteenth century cog and gear...

Illustration of an nineteenth century cog and gear mechanism

ARP23A16_112

Illustration of an nineteenth century cog and gear...

Engraving depicts threshing with horses in Spain

ARP23A14_055

Engraving depicts threshing with horses in Spain

The mechanism of an air pump

ARP23A15_342

The mechanism of an air pump

A valve mechanism of a hydrogen balloon

ARP23A12_423

A valve mechanism of a hydrogen balloon

Illustration of an 19th century cog mechanism

ARP23A16_102

Illustration of an 19th century cog mechanism

The threshing of corn, on a threshing floor, using a hand flail

ARP23A14_017

The threshing of corn, on a threshing floor, using...

A corn screener with a self cleaning action

ARP23A14_045

A corn screener with a self cleaning action

Engraving depicting Garret & Son's portable steam engine driving a threshing machine

ARP23A14_046

Engraving depicting Garret & Son's portable steam ...

The threshing of corn, on a threshing floor, using a hand flail

ARP23A14_051

The threshing of corn, on a threshing floor, using...

The threshing of corn, on a threshing floor, using a hand flail

ARP23A14_052

The threshing of corn, on a threshing floor, using...

A corn screener with a self cleaning action

ARP23A14_049

A corn screener with a self cleaning action

Engraving depicting Garret & Son's portable steam engine driving a threshing machine

ARP23A14_050

Engraving depicting Garret & Son's portable steam ...

Diagram of a contrivance that may be converted into a drinking cup

ARP18A27_030

Diagram of a contrivance that may be converted int...

A young soldier of the US armored forces

ARP18A28_353

A young soldier of the US armored forces

Diagram of a the mechanism behind a nodding eagle.

ARP18A27_029

Diagram of a the mechanism behind a nodding eagle.

A young soldier of the US armored forces

ARP18A28_357

A young soldier of the US armored forces

Photograph of Arthur Kornberg

ARP18A29_284

Photograph of Arthur Kornberg

Submarine

ARP18A08_029

Submarine

Photograph of Sol Spiegelman

ARP18A29_347

Photograph of Sol Spiegelman

Photograph of Sol Spiegelman

ARP18A29_346

Photograph of Sol Spiegelman

Photograph of Arthur Kornberg

ARP18A29_368

Photograph of Arthur Kornberg

Replica of a tumbler lock and slide key

ARP17A39_365

Replica of a tumbler lock and slide key

Collection of different lock keys

ARP17A39_363

Collection of different lock keys

HERO OF ALEXANDRIA - 1st century ADReconstruction of Hero's steam engine.

ARP17A30_295

HERO OF ALEXANDRIA - 1st century ADReconstruction ...

Hero's aeolipile. From Heronis Alexandrini Spiritalis Liber,

ARP17A30_293

Hero's aeolipile. From Heronis Alexandrini Spirita...

Diagrams of the different toilet bowls and the flushing mechanisms

ARP17A27_466

Diagrams of the different toilet bowls and the flu...

Carpenters constructing a stamping mill for breaking up ores

ARP15A00_011

Carpenters constructing a stamping mill for breaki...

Rag-and-chain pump being used to raise water from a mine

ARP15A00_009

Rag-and-chain pump being used to raise water from ...

Steel production: Forge

ARP15A00_328

Steel production: Forge

History of the Automobile

ARP10A02_365

History of the Automobile

Ventilating a mine

ARP07111_009597P

Ventilating a mine

Draining mine workings

ARP07111_009607P

Draining mine workings

Suction pumps arranged in three tiers

ARP07111_009608P

Suction pumps arranged in three tiers

Draining a mine using a duplex suction pump

ARP07111_009609P

Draining a mine using a duplex suction pump

Multiple suction pumps raising water from a mine

ARP07111_009610P

Multiple suction pumps raising water from a mine

Three devices for ventilating mines with bellows

ARP07111_009613P

Three devices for ventilating mines with bellows

Ventilating a mine

ARP07111_009615P

Ventilating a mine

Draining mine workings with a bank of three suction pumps

ARP07111_009616P

Draining mine workings with a bank of three suctio...

Mine drainage

ARP07111_009617P

Mine drainage

Double inclined plane for raising rub boats from one level of a canal to another

ARP07112_009800P

Double inclined plane for raising rub boats from o...

The Eddystone lighthouse

ARP07113_010285P

The Eddystone lighthouse

Perpetual motion machine

ARP07113_010330P

Perpetual motion machine

Mary Somerville

ARP07114_011007P

Mary Somerville

Mary Somerville

ARP07114_011093P

Mary Somerville

Post Mill with fantail and gallery

ARP07108_0460000692

Post Mill with fantail and gallery

Chinese agriculture

ARP07104_460001066

Chinese agriculture

Sectional view of Colt revolver with, at E, the cylinder and revolving mechanism

ARP07102_390006072

Sectional view of Colt revolver with, at E, the cy...

Examples of various hand-gun firing mechanisms

ARP07100_390003934

Examples of various hand-gun firing mechanisms

Steel production

ARP07095_390001485

Steel production

Engraving showing a matchlock mechanism in use on British firearms c1700

ARP07094_390000918

Engraving showing a matchlock mechanism in use on ...