Gunner's Rule, by John Rowley, London, c. 1700 (MHS Record Details: Inventory number 47160)

Gunner's Rule, by John Rowley, London, c. 1700

Object is on display.
Inventory Number:	47160
Object Type:
Persons:	John Rowley
Date Created:
Place Created:	London England United Kingdom Europe
Accession Number:	1925-43
Brief Description:	English gunnery scale or rule for use by artillery. Ivory, with silver cursor. Signed "I Rowley Fecit"; undated; c.1700. The rule includes scales of elevation and distance for mortars, and the quantity of powder needed (from 13 oz. for a 6-inch mortar, to 31 lb. 4 oz. for a 20-inch mortar), together with scales marked, "Height of Pieces ... Powder for Proof ... Powder for Service ... Weight of Shott ... Long Guns".
Primary Inscriptions:	Signed "I Rowley Fecit"
Provenance:	Lent by Christ Church, Oxford in 1925.
Collection Group:	Orrery Collection
Narratives Mathematical instruments by John Rowley Inventory no. 47160 - Former Display Label Bennett, J. and Johnston, S., The Geometry of War, 1500-1750 (Oxford, 1996) Orrery Collection in print Former Display Label - The Orrery Collection of Scientific Instruments Former Display Label - The Principal Makers of Instruments in the Orrery Collection Orrery Collection: 1731 Inventory Accession Record : Extract from Annual Report for 1925

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