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Vintage draughtsman's set of cardboard scales by Eyre & Spottiswoode Ltd. Good sturdy immaculate rules, ivory coloured. There are seven of these rules, one is missing (the 1/4 inch full size and 1/8 inch 1/2 size to the foot ruler). All in excellent condition. They measure 31.5 cm long (12.1/2 inches).
Instruments and Implements
Antique Medical and Scientific
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