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A late 19th/early 20th-Century single-bulb radiometer,
Details
A late 19th/early 20th-Century single-bulb radiometer,
with four vanes and black glass finial, with original cotton wool in original black leatherette-covered drum-shaped card case, the lid with a label inscribed in pencil Radiometer -- 9¼in. (23.5cm.) high
See Colour Illustration
with four vanes and black glass finial, with original cotton wool in original black leatherette-covered drum-shaped card case, the lid with a label inscribed in pencil Radiometer -- 9¼in. (23.5cm.) high
See Colour Illustration