Only five of these coins made it into the world. That’s why one of these can be worth as much as $4.2 million, according to Urban Aunty. And here is the world’s most expensive coin of all time ...

and this 1909 VDB version is the most desired. You can tell it is authentic from the square, sharp-edged rims and the details. This rare coin from 1909 sold at auction for $258,000. It is unique ...