Last week Stamp Magazine reported an example of a Doctor Who stamp used already - see their news here.
We made our own enquiries and can show another example used on a newspaper competition entry - again the date is not clear but ours seems to be 27 February, and the location 'Home Counties North'.
This is quite remarkable. Either the Post Office branch had no other 1st class stamps to sell (which is unlikely) or they misunderstood the release date.
The story was picked up by a German Philatelic magazine. And they've acknowledged the source.
Omaha Train Robbery: May 22, 1909 - In the dark of the night around 11pm Union Pacific’s Overland Limited train was stopped just south of Omaha, Nebraska by a pair of men holding pistols and we...