A third Union flag flown at Trafalgar?
A Union flag, by repute flown by one of Nelson’s warships at the Battle of Trafalgar in 1805, carries an estimate of £30,000-50,000 at sporting gun specialists Holt’s on March 17.
The 14 x 7ft (2.96 x 2.13m) battle-scarred flag, dotted with holes from musket balls, has been in th…