Bavaria. Otto gold Proof 10 Mark 1910-D, KM#994, PR65 Cameo NGC, a handsome coin with bright mirrors, quite a handsome portrait, a few tiny scuffs on field behind the bust. Very scarce.
Krause catalog price(s) for this item: $150 in VF, $175 in EF, $275 in UNC, $425 in BU.