Watch List notes:

BRITISH COINS, George V, Gold Sovereign, 1924 SA, Pretoria mint (South Africa), bare head left, B.M. on truncation, GEORGIVS V D: G: BRITT: OMN: REX F: D: IND: IMP:, rev St George slaying dragon with sword, SA mintmark on ground, date in exergue, tiny B.P. to upper right, 7.99g (Bentley 921; Hern S339; Kaplan 101 RRR; KM 21; Fr 5; Marsh 288 R5; S 4004). A few bagmarks, rim nick on the reverse, otherwise toned, extremely fine and extremely rare.
Calendar year mintage 3,184
Mintage figure quoted from Sovereigns of the British Empire by Capt J J Cullimore-Allen with which Hern agrees. Marsh quotes the number at 2,660.

Estimate: £4000-5000