Watch List notes:

COINS. 錢幣, REST OF THE WORLD, 其他國家, South Africa, George V (1910-36): Silver Proof Halfcrown, 1923 (KM 19.1). In PCGS holder graded PR62, brilliant uncirculated, the reverse attractively toned.
only 1402 specimens struck of all the 1923 proofs

Estimate: US$300-400