This £2 coin commemorates the 50th Anniversary of the Discovery of DNA Double Helix in 2003. It is a circulated coin from the United Kingdom, with a denomination of Two Pounds. The year of issue is also 2003 and it belongs to the Decimal Coinage (c.1971-Now) category. The coin's fineness can be seen in the attached photos. It is a British coin, specifically from Great Britain, and has not been modified in any way. Thank you for considering this piece of history for your collection.