Legal Tender in the UK

[Shaun 'TheSheep' Atkinson]

i was just wondering if anyone new anything or new how to get info on what is classed as legal tender? ive recently come across a 500,000,000 zimbabwe dollar note and according to what little info i have found it is actually IN circulation. My main question is, can you exchange them to GBP at a UK bank? because if so, this note is worth £954,900 according to XE currency converter. Anyone with any amount of info please let me know.

cheers.