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Sectioned catalyst convertor matrix for car exhaust, 1982-1983

1982-1983

Edison's electric carbon filament lamp

1879

Langley's 'Great' Bolometer, 1880-1890

1880-1890

Three Russian coins of platinum dated 1828

1828-31

Gentilli type tacheometer, Austrian.

1868-1876

X-ray tube with separate anode

1905-1909

Brass reflecting circle.

1865-1871

Altazimuth theodolite, British, 1816-1850

1816-1850

Siemens Pyrometer Sensor, 1890

1890

Platinum resistance temperature sensor made by Rosemount Engineering Co.

Two foot geodetic theodolite, 1826-1828

1826-1828

Clutch Pencil with Refill, 1977

1977

Crookes' Radiometer, 1872-1879

1872-1879

McLeod's vacuum gauge (imperfect)

1880

Bulb of a Porcelain Air Thermometer, 1887

1887

Model of Callendar's Sunshine Receiver, 19th Century

1895-1910

Callendar's Bolometer, 1914

1914

Air Temperature Grid, 1902-1930

1902-1930

Air Temperature Grid, 1886-1930

1886-1930

Early Platinum Electrical Resistance Thermometer, 1871-1890

1871-1890

Early Platinum Electrical Resistance Thermometer, 1871-1890

1871-1890

Early Platinum Electrical Resistance Thermometer, 1871-1890

1871-1890

Langley's Bolometer, 1880-1890

1880-1890

Platinum

1862-1880

X-ray focus tube with adjustable anti-cathode

1897

Heavy-current x-ray tube with separate anode

Heurtley magnifier, 1919.

1919

Borda type repeating circle.

1805-1815

Very early Edison carbon filament lamp.

1879

Early Platinum Electrical Resistance Thermometer, 1871-1890

1871-1890

Early Platinum Electrical Resistance Thermometer, 1871-1890

1871-1890

Davidson Photomicrographic Camera

circa 1920

Davy Infra-red Reflection Apparatus.

1876

Frog's Heart Thermometer, 1887

1887

Callendar's Absolute Recording Bolometer, 1905

1905

Rectum Thermometer, 1886-1930

1886-1930

Set of 19 standard apothecaries weights by De Grave Short and Co. London, in fitted mahogany case inscribed on lid "WEST RIDING OF YORKSHIRE 1880". 10oz tr. 8oz tr. 6oz tr. 4oz tr. 2oz tr. 1oz tr. 3iv. 3ij. 3i. 3ij 3ts 3i (3ts missing) in brass; 6gm. 5gm. 4gm. 3gm. 2gm. 1gm. 1/2gm. in platinum

Set of nineteen standard apothecaries' weights

1879-1880

Platinum helmet, from Iridis platinum apparatus (3.100 oz.), engraved with letters 'S.K.M.'

Helmet from Iridis platinum apparatus

Platinum U tubes, from Iridis platinum apparatus (7.990 oz.), consisting of platinum U-shaped tube with two arm attachments connected by white coiling

U-tube from Iridis platinum apparatus

Etchings with muslin ground (before 1852). Steel photoglyphic plate - fern leaf, 5" x 8", with proof. Platinum visible in leaves.

Fern Leaf

1852

One of the first pieces of platinum melted in the oxy-hydrogen flame by M.H. St. Clair Deville. Presented to Faraday about 1859.

platinum (metal)

Platinum electrical resistance thermometer (pyrometer), laboratory pattern, with porcelain tube and fitted with glass tube, by The Cambridge Scientific Instrument Company Limited, Cambridge, England, 1910-14.

Platinum Electrical Resistance Thermometer, 1910-14

1910-1914

Platinum wire. Presented by Mr. Charles, late assistant at the Royal Artillery Institute

Platinum wire

before 1889

Platinum and phosphorus. Prepared by Dr. Percy in 1850

Platinum and phosphorus

1850

Spongy platinum

Spongy platinum

before 1889

Platinum melted with silica

Platinum melted with silica

before 1889

Gold deposited on platinum, making a superficial alloy. Prepared by Messrs, Johnson, Matthey, and Co., 1885

Gold deposited on platinum, making superficial alloy

before 1889

Platinum crucible with lid

Platinum crucible with lid

Platinum Alembic, from Iridis platinum apparatus (8.550 oz.), engraved with letters 'S K M' along top edge.

Alembic from Iridis platinum apparatus

Platinum bottle, or flask, from Iridis platinum apparatus (4.505 oz.). Engraved with 'S & A DEPT S.K.M.' around neck.

Flask from Iridis platinum apparatus

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