C.1775-85.  7 ¼” total length with rounded butt slightly tapered case and leaf shaped wedge section blade. The shape is specific as illustrated by a companion example in Swords and Blades of the American Revolution, Neumann, #4.K, found at a camp of the English 17th Regiment of Foot at Inwood NY. His example was found in New York’s Hudson River Valley about 1960.Excavated, the grip scales perished.