A large commemorative glass rummer 1st half 19th century

A large commemorative glass rummer 1st half 19th century, one side engraved with a profile portrait of Admiral Lord Nelson within a banner proclaiming 'Who Defeated the French Fleet Oct 21st 1805, Off Cape Trafalgar', the reverse with HMS Victory with sails furled and flag flying, 19.5cm high.

Provenance: Admiral George Stewart, 8th Earl of Galloway (1768-1834), former Admiral of the Blue, then to his 2nd son, Vice Admiral Hon. Keith Stewart CB (1814–1879) and thence by descent.