This coin, when pressed up against a wall or door or other solid object up to 10 feet in thickness, can be looked through like a peephole by the user. It is blocked by any amount of lead. The field of view is appropriately limited for seeing though a small hole in a material so thick, with the character able to see almost perfectly well through a thin sheet but able to discern little more than light or dark through a 10-foot wall.
The coin does not create light, so darkness on the far side may render sight impossible, such as when looking into a sealed chest or into the center of a wall more than 10 feet thick.
The peephole is imperceptible on the far side except as a point of bright magical radiation visible to detect magic or similar means.
The user has an additional 1 in 6 chance of being surprised while engaged in looking through the peephole.
Experience Point Value: 3,500
G.P. Sale Value: 20,000
One of the 13 magic coins from my latest document: Pretty Pennies, Making Copper Coins Worth the Encumbrance.