Antique Lincoln coin collection

The Antique Lincoln coin collection is a unique miscellaneous item in Fallout 3.

Characteristics
In reality, these are pre-War pennies.

Locations
Antique Lincoln coin collection is found in the Museum of History Offices, Library section (2 stories with turret), in a room on the eastern side of the top floor. Once you reach the top of the stairs continue east until you're in the hall. Take a left and then a right then another left. It should be in the bookcase on the middle shelf.

Related quests
As a part of the unmarked quest Lincoln's Profit Margins, it can be sold to:
 * Hannibal Hamlin from Temple of the Union (for 15 caps to start, but 30 upon passing a Speech check)
 * Leroy Walker at the Lincoln Memorial (for 15, but 30 upon passing a Speech check)
 * Abraham Washington in Rivet City (for 15 caps, but 30 upon passing a Speech check)