Watch List notes:

NETHERLANDS EAST INDIES: AE bonk ½ stuiver (6.52g), 1805, KM-213, Sc-552, possible contemporary imitation, date // denomination (largely obscured), much porosity, VG. Moquette notes that owing to the counterfeiting of the half-stiver bonks by two Chinese men named Njio Asie and Njio Adjie, who made them by cutting up the one and two stiver pieces, all half-stiver bonks were withdrawn from circulation by the local government. The two men were subsequently scourged, branded, and imprisoned in chains for 25 years.

Estimate: 60-90 USD