Watch List notes:

COINS, 錢幣, PLANTATION TOKENS, 種植園代用幣, Aër Kesoengei Estate: Zinc 50-Cents, 27mm, die axis ↑↑ (LaWe 5 RR). Pierced at top, some corrosion spots, otherwise about very fine, rare.
according to Lansen, only three known

Estimate: US$250-300