Watch List notes:

(g) Elizabeth II (1952-), Proof Gold Set, 'London Olympics' 2012, three groups of three coins, issued in 2010, 2011 and 2012, illustrating the Games' themes, each group consisting of one 100-Pound (34.05g) coin and two 25-Pound (8.51g) coins, the three groups being 2010, Citius (Faster), Neptune, Diana, and Mercury, 2011, Altius (Higher), Jupiter, Juno, and Apollo, and 2012, Fortius (Stronger), Mars, Minerva, and Vulcan, total weight 153.21g. (S.OGS8), brilliant proofs, in cases of issue, in Royal Mint display box, with certificates giving individual coin specifications and stating that the issue of this nine coin set is limited to 1,000 sets (9).

Estimate: £6,000 - £8,000