Paul McCartney drug swoop leads to huge cash valuation for Antiques Roadshow guest

and his wife Linda were caught with cannabis during a 1984 Barbados holiday - and on the way back from their winter sun break, it looked as if they were about to get nabbed again. An guest took up the story as she told of how her dad's team at Heathrow Airport received a tip-off that they could still be carrying drugs.

While his colleagues detained and interviewed them in a private room at customs, her dad was busy sketching a cartoon version of events, which Paul himself ended up so happy with that he decided to sign it. The drawing showed Paul singing a slightly adapted version of his song 'Yesterday' to a customs officer. A speech bubble from his dismayed mouth read the words: "Yesterday all my troubles seemed so far away, now I know that they are here to stay."

When Paul and Linda came out of the interview room, he showed the impromptu piece of art to them, joking: "This is a bit of a tense moment but this might make you laugh!"

A bizarre twist led to Paul liking it so much he added his signature to it, along with the words: "Play the pipe of peace!"

This Easter Sunday evening (April 20), the daughter of the customs staff member could be seen proudly clutching the note and confessing that, although her late dad wouldn't have thought it would be worth much, she wanted to see for herself.

She was delighted to learn that the market "values it highly" and that it would be worth "at least £2,000 to £3,000".

Paul and Linda had originally been arrested in Bridgetown, Barbados for possessing just under half an ounce of cannabis, so they may have been expecting that customs officers would detain them on their return to the UK - and in any case, they seemed to take the setback well.

That was just one of a number of surprise finds on the show, with one of 's "iconic" wartime cigars being valued at around £2,000.

Then a seemingly pixellated picture of the late Queen turned out to actually have been made out of tiny Lego bricks, with a graphic designer learning that the piece he had purchased for just £50 would now be worth £500 to £600.

Fashion featured highly in the episode too, with one proud man bringing his entire wardrobe of Vivienne Westwood goodies from her 1981 Pirates collection, only to find that it could now be valued at around £15,000.

The delighted owner of the gear nostalgically recalled how her models were allowed to put together any pieces they wanted for the catwalk - and would even dance down the runway in those days.

He showed off asymmetric scarves and edgy pirate boots with the designer's "legendary squiggle" but made it clear that, no matter how much his collection was worth, he wasn't willing to part with it: "It's not going to auction because I still wear it!"