Project Nemesis is a fan driven website for games that use the One-Roll Engine (like Nemesis, Wild Talents, Reign and Monsters) or Chaosium's Basic Roleplay System (BRP) (like Call of Cthulhu) and the Delta Green setting.
A slightly water-damaged wooden box of the kind used for carrying
playing cards aboard of vessels (brass anchor set on the lid, brass
finishing), now containing three blue granodiorite cubes (the side
being roughly 5 cms) on the faces of which numbers were carved,
probably for them to be used as playing dice, and obviously of great
antiquity.
The first die carries the numbers 2, 3, 5, 7, 11, 13
The second die carries the numbers 1, 1, 2, 3, 5, 8
The third die carries the numbers 1, 3, 6, 10, 15, 21
The cubes are well-worn and slightly cracked. Isotope dating on the rock has proven inconclusive.
Woods-lamp analysis on the box revealed the remains of a blue-ink cargo stamp, based on which we can say for certain that the box was on board of the French warship Orient in 1798 and, on the inside of the lid,
traces of Copper-bases blue blood (probably belonging to a horseshoe crab or similar crustacean).