£230
Professor Fuller's Spiral slide rule manufactured by W.F Stanley & Co, c.1904 comprising of a mahogany handle with a lacquered paper inner drum and a similar revolving outer drum, all with tables printed on them and a fixed brass scale for taking readings. It is complete with his instruction booklet and its mahogany case. Case 45.5cm long.
Good condition, apart from the brass seal which is tarnished.
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