Museums
Coin Organisations
BNTA British Numismatic Trade Association
IAPN International Association of Professional Numismatists
Other Websites
www.wildwinds.com an online coin reference site
www.cromwellcoins.com an excellent site to review English Civil War issues
www.englishhammered.com Timothy Cook's online collection of English hammered coinswww.coinarchives.com A very useful site to review coins and their prices in past auctions
www.petitioncrown.com A site showcasing some of the rarest and most beautiful British coins
www.acsearch.info A useful site to review a database of ancient coins and their past prices