Watch List notes:

CRUSADER KINGDOMS: AR ½ dirham (1.45g), Ghazza (Acre), AH12(51), CCS-16, Christian inscription divided between obverse & reverse within the square: al-ab wa'l-ibn with cross at the top // wa'l-ruh al-quds, "the Father, the Son, and the Holy Spirit", square flan, choice VF, RR. The half dirham is much rarer than the full dirham (only two recorded on CoinArchives), and especially with the mint name clearly legible, as on this example.

Estimate: 450-550 USD