Watch List notes:

OTTOMAN TURKEY: Mahmud II, 1808-1839, AV rubiye (¼ altin) (0.81g), Kostantiniye, AH1223 year 8, KM-608, with an extra numeral "1" added to upper left of the reverse, for unknown reasons, unusual and apparently very rare, AU, R.

Estimate: 100-130 USD