Sliderule : Rare 'Grid Iron' type

Catalogue number #1292882130

Grid Iron Sliderule	Grid Iron sliderule	Dedication on rear of sliderule	Maker's mark on sliderule	Grid Iron sliderule

Description:

Rare 'Grid Iron' sliderule designed by Major General Hannyington c. 1884 made by Aston & Mander 1917 Ltd. London. Provenence: London School of Economics given as a retirement present see dedication note on rear (photo) Condition: near perfect twp small pieces of veneer missing from the bottom edge see photo.

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