What are railroad pennies?
They're standard issue U.S. Mint "copper" pennies that have been flattened by train locomotives.
The "silver" visible in flattened pennies is zinc.
Is this legal?
Yes. U.S. Code Title 18, Chapter 17, Section 331 prohibits "the mutilation, diminution and falsification of United States coinage" for fraudulent uses. For example, you can't flatten a penny and then try to trim it into two pennies for use in a vending machine. But, as long as you don't attempt to use a flattened coin as U.S. currency your owning it (and our flattening of it) is legal. It is important to note that FLATTENED COINS ARE NO LONGER LEGAL CURRENCY.
How much do they cost?
$1.50 per penny plus $1.00 shipping and handling per order.
Due to differing interpretations of U.S. law no shipments will be made outside of the United States.
Special order coins are $1.00 extra if available.
Special orders include requests for specific year of penny (usually birthday year), date flattened, or type of locomotive (freight, passenger, light rail).