There's a pub there, close both to the huge Neolithic mines of Grime's Graves and the Lingheath pits that supplied gunflints to army, navy and buccaneers, called The Flint Knappers.
a pioneer of naval gunnery
Gunpowder is a mixture of saltpetre, charcoal, and sulphur, and early gunpowder was just that: a powder.