Vintage Thornton Slide Rule P221 with instruction leaflet
This advert is located in and around Derby, Derbyshire
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Advert Description
Selling myThornton slide rule, model P221, with instruction booklet dated 1965, a comprehensive log log slide rule, in excellent condition, with the initial DR on one top edge, with protective cover that is worn and torn just at the top edge. Collect from Mickleover please.