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Wedgwood Pyrometer by J. Newman, 1827-56
King George III
Brass Wedgwood pyrometer, taper gauge, by J. Newman, 122 Regent's Street, London, 1827-1856.
Pyrometer tube, (silicon carbide)
Pyrometer tube, T1364 (silicon carbide) [triangle] cc
Wedge Optical Pyrometer
Scientific Instruments & Research
A wedge optical pyrometer, based on Cochrane's patent.
Brass optical pyrometer from St.Georges Hospital,
Brass optical pyrometer from St.Georges Hospital, London, late 19th to early 20th centuries
I-Rite optical pyrometer, made by the Gibb Instrument Co., P
I-Rite optical pyrometer, made by the Gibb Instrument Co., Pittsburgh, Pennsylvania, United States, 20th century.
Gas filled pyrometer standard No. 285, calibrated
Gas filled pyrometer standard No. 285, calibrated at the National Physical Laboratory (a specially designed lamp with a metal filament, in a wooden case, probable date 1951.