It's spot #8, Stone Marker.

And here's another list update.
#10: The Golden Jaguar of Atahualpa#9: The Medal of Sir Edmund Hillary#8: King Tut's Cobra StaffGalileo's Cannonball (0)
John Sutter & the Map to the Lost Gold Mine (0)
The Star of Sultan Saladin (0)
The Pendant of Kamehameha (0)
Henry VIII's Great Seal (0)
The Dragon Lady & the Blue Pearl (1)
Lawrence of Arabia's Headdress (0)
And Strike 1 for Blue Pearl. It was a great episode, but the other episodes above had more going for it.