Watch List notes:

Five Pound Crowns Countdown to the London Olympics 2009-2012 a 4-coin set Silver Proof Piedforts S.LOSS6, comprising 2009 3-Year Countdown S.4920, 2010 2-Year Countdown S.4921, 2011 1-Year Countdown, and 2012 Olympics S.4923 Silver Proofs each with the blue Olympic logo in the reverse field, nFDC to FDC in the Royal Mint box of issue with certificates

Estimate: 200-250 GBP