I've been browsing a CD of Krause World Coins 2011 edition covering all coins issued 2001-2010 Although I primarilary collect "penny" sized bronze, I have over the years built a considerable type collection of world-wide copper and bronze minors, a sideline interest culled from circulation, junk trays, bulk buys and holiday change. So always interested to see what types I haven't yet got an example of This Krause covers about 200 coin issuing territories (ignoring fanatsies like Andorra) Only 9 countries - Australia, China (Taiwan), Denmark, Papua New Guinea, Sweden, Switzerland, Tonga, Trinidad & Tobago, and the United Emirates have issued bronze coins The vast majority of nominally bronze issues are now copper plated steel - UK, Euro zone, Afghanistan, Bosnia, Brazil, Brunei, Canada, Cayman Is, Falkland Is, Gibraltar, Guernsey, Guyana, Jersey, Isle of Man, Kenya, Malawi, Malaysia, Mauritius, Mozambique, New Zealand, Niue, Oman, Phillipines, Romania, St Helena, Solomon Is, South Africa, Suriname, and Tristan da Cunha. Barbados, Fiji, Panama and The United States of America issue copper plated zinc coins This means that about 75% of issuing countries have turned their back on even a semblance of "coppers" in loose change - various brass alloys and brass clad steel seem to be the fashion One wonders how many of todays issues will escape corrosion for future collectors. David