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Title: Hannyngton grid-iron slide rule, slider stamped "R.C.S. D.S. [Go to resource]
Description: Hannyngton grid-iron slide rule, slider stamped "R.C.S. D.S. & A. MECH. LAB. 532", by Aston & Mander, London, in box License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: slide rule (Hannyngton) Source: Science Museum Creator: Aston & Mander Identifier: 1990-739 Go to resource More Like this...
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