An upside down ship makes this commemorative stamp one of the most famous and valuable American postal errors of all. Find ...

The Buffalo Pan-American Exposition saw the killing of a president. The fair is also famous among stamp collectors for inspiring one of the most well-known among US stamp errors.

Lionel Messi's locker could be yours. If you have $350,000. Find out more about the Nou Camp sale that ends this month.

A drawing on hospital paper made with matchstick charcoal could be worth $200,000. Find out why outsider art is such a big ...

A print of a legendary and tragic image of John Lennon is being sold this month. Find out why the notorious picture could be worth $30,000.

A Star Wars production model might make £30,000 at auction. Find out why this Obi-Wan Kenobi toy is so valuable here.

A painting of Scrooge McDuck by his creator has already got up to $100,000 in an online auction. It will surely make more as ...

What a team they might have been. John Lennon’s eight-page letter to Eric Clapton is full of fascinating detail on the former-Beatles political and musical dreams.

Mercedes Grand Prix winner could become one of the top five most valuable cars ever sold this February. We explain how here.

It’s a hard read, but one of the most important works of literature and to book collectors. Find out why this copy of James ...

It’s a hard read, but one of the most important works of literature and to book collectors. Find out why this copy of James ...

A beautiful edition of James Joyce’s Ulysses from a 100-copy, 1922 edition is expected to make as much as $150,000 at auction ...