London, National Series, Halfpenny 1780, Bust right of Louis XVI, rev. Britannia (?) seated right holding pole with a Cap of Liberty, edge plain, 26.5mm/6.98gm. (DH.1004). About Extremely Fine for issue (very crude), toned extremely rare 'RRR'.
The specimen in 'Baldwin's Basement Part One' sale, 30 Sep 2014, lot 580, hammered for £3,600 !