Watch List notes:

Five Pound Crowns - Countdown to the London Olympics (3) 2009 3-Year Countdown Silver Proof Piedfort, 2010 2-Year Countdown Silver Proof Piedfort, and 2011 1-Year Countdown Silver Proof Piedfort, each with the coloured Olympic logo on the reverse, nFDC to FDC with light hints of tone, retaining almost full mint brilliance, in the 4-coin box of issue with certificates

Estimate: 140-180 GBP