Gunner's Rule, by John Rowley, London, c. 1700
|Inventory Number:|| 47160|
|Object Type:|| |
|Place Created:|| London England United Kingdom Europe
|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 ...
|Primary Inscriptions:||Signed "I Rowley Fecit"|
|Provenance:||Lent by Christ Church, Oxford in 1925.|
|Collection Group:||Orrery Collection|