The 1803 $10 Extra Star Reverse is an unusual variety with an unlikely "surprise" in the final cloud on the right of the reverse. There, a mint engraver impressed a clear, tiny star just right of center. The star is visible and obvious on well-struck, unworn examples, but becomes indistinct on worn coins and may not be visible at all on a poorly struck example. Dannreuther believes that 90-110 examples are known. The PCGS Condition Census includes some Mint State examples but drops down to the AU level. The finest example appears to be the NGC MS66 that sold for $333,500 in 2006.