1810 HALF DOLLAR -
NGC AU-53. Ex - Bowers & Merena Galleries' "The Cabinet of
Lucien M. LaRiviere, Part II", March 15-17, 2001, Lot 1688,
"Overton 106a" sold for $402.50
Half Dollar Die Varieties 1794-1836", Third Edition, by Al C.
Overton (purchase a copy by clicking on the title)