Watch List notes:

Tristan Da Chuna The 2019 Britannia Four-Sided Gold Five Coin Definitive Sovereign Proof Set FDC in Hatton's of London presentation case with certificate, comprises £5, Double Sovereign, Sovereign, Half Sovereign and Quarter Sovereign (40, 16, 8, 4 and 2 grams of .917 gold these being the standard GB gold content for these denominations) "THE WORLD'S FIRST FOUR-SIDED SOVEREIGNS TOGETHER IN ONE SET"

Estimate: 2500-3500 GBP