Watch List notes:

BRITISH COINS, MILLED GOLD SOVEREIGNS, George IV, Gold Sovereign, 1823, first laureate head left, rev St George slaying dragon right with sword, date in exergue, weak upper serif on the 1, date figures slightly misaligned (Bentley 14; Marsh 7 R3; MCE 473; S 3800). A myriad of heavy surface marks with some scuffs in the fields and upon design, short scratch by throat, otherwise toned, very fine and very rare.
Calendar year mintage 616,770
One of the rarest dates in the currency series of George IV, the 1823 Sovereign is perhaps the second rarest date of the reign after 1828 due to a low calendar year mintage.

Estimate: £2500-3000