101 things in your attic that could be worth a lot of money

266. Cast Iron Mailbox

Manufacturer: Griswold and others
original price: US $ 20-40 *
Worth Today: US $ 50-200 *

Most mailboxes are made from a composite metal of galvanized steel, stainless steel, Zintec steel, or aluminum. After the mailbox is made, it is powder coated to suit your recipient's design requirements. There are some mailboxes that are made of wood or plastic, but these are less common as they are less durable than metal ones.

In 1924, postal workers asked that mailboxes be made from cast iron, as they were cheaper to make, more durable, and resistant to rust. Although cast iron crates have gone out of fashion, you can resell them for $$ 50-200 on eBay as some buyers still want to go back to the old days.