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Uncoated, polished germanium disc by Barr and Stroud Ltd.

Uncoated, polished germanium disc by Barr and Stroud Ltd.

1980-1986
Coated, polished germanium disc by Barr and Stroud Ltd.

Coated, polished germanium disc by Barr and Stroud Ltd.

1980-1986
Germanium lens

Germanium lens

1980-1986
Germanium Crystal for X-ray Polychromator, English, 1980

Germanium Crystal for X-ray Polychromator, English, 1980

1978-1980
Germanium diode type GP5C

Germanium diode type GP5C

1953
Glass-stoppered bottle containing germanium

Glass-stoppered bottle containing germanium

1801-1892 (prepared)
Thermalert Infrared Thermometer System, model LC814LBC, serial no. 5960, range 40-200° C, made by Raytek Inc. Santa Cruz, California, USA. (Sensing head incorporating pyroelectric sensor and signal processing system only, without power supply, indicator or cable.)

Infrared Thermometer System

1980-1989
Crystals for X-ray polychromator on Solar Maximum Mission satellite: (1) quartz (2) germanium

Crystals for X-ray polychromator on Solar Maximum Mission satellite