Since his death, examples of his best paintings have fetched ever-rising prices in London auction rooms.

Since his death at the age of 60 in 2002, examples of his best paintings have fetched ever-rising prices in London auction rooms.

The small number of Barracudas is the result of low buyer interest when the vehicles were new; therefore, outstanding examples fetch high appraisal values today.

Today, in the sale rooms, the best examples fetch truly fabulous prices-L50,000 and more.

High-grade examples of this coin fetch $1500 to $5000 at auction.

Originally priced at $908, clean examples today fetch $2,500.

This type of error is highly sought after, and examples can fetch steep prices from collectors.

The present example fetched $47,500 (£27,700).

Originally priced at around US$13, prime, mint-with-box examples can easily fetch upwards of $300.

One example fetched just over £20,000 at Bonham's 2004 Olympia auction.