Watch List notes:

George VI, proof gold set, 1937, comprised of five pounds to half sovereign, bare head l., rev. St. George and the dragon (S.PS15), in original case of issue, the five pounds with scratch to reverse, light hairlines to all coins, the two pounds with small speck to hairline of portrait, all coins with scratches to edges, otherwise all extremely fine or better (4)
The scratches are a common occurrence resulting from people using pins or other sharp objects to release the coins if they became stuck in their cases.

Estimate: 8000 - 10000 GBP