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.

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

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

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

A double-necked guitar played by Carlos Santana and one of Prince’s trademark ruffled shirts from Purple Rain are the top items in a major pop culture sale this month. The heart of the Bonham’s Pop ...

A 110-metre hurdles gold medal won in the 1904 Olympic Games in St Louis is being sold this month and has already attracted bids of just under $170,000. The gold award is a 39mm disc both designed and ...

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 later this month. The book is the Annette Campbell-White copy of Joyce’s ...

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.

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 Joyce’s Ulysses carries a $150,000 price tag.

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 Joyce’s Ulysses carries a $150,000 price tag.