HMS Achille, Spartiate's sister ship
The last known surviving Union Jack flown in battle by the Royal Navy at Trafalgar is expected to sell for £15,000 at auction. The jack was flown from the flagstaff of HMS Spartiate. After the battle on 21 October 1805 it was presented to one of the ships officers, and his family and ancestors have kept it safe until now.
Charles Miller, who is selling the flag in London on Trafalgar Day, October 21, said: “We believe it is the only existing flag that flew at Trafalgar. It is one of the most important historical items any collector could expect to handle. The damage is probably from bullet holes or splinter fragments, but despite this it is in amazing condition.”
HMS Spartiate was a 74 gun ship of the line, built and launched by the French. In 1798 she fought at the Battle of the Nile, and was captured by the British. As was the custom at the time she was repaired and commissioned into the Royal Navy, complete with the same name, and fought at Trafalgar.
In my opinion, something of this importance should not be allowed to get anywhere near private collectors, who would puchase it out of extravagance and keep it for their own gratification. It would far more appropriately be donated to the National Maritime Museum or the Royal Naval Museum, where anyone and everyone could go and see it. Or, god forbid, it might even end up leaving the country. Museums, with their rigid funding, simply cannot compete against wealthy individuals.
Should there be laws to protect items of national importance from being squirreled away, or leaving the country altogether?

