Depending on whether you are looking for a machine to tumble clean either metals or stones, you may be wondering what the difference is between a rock tumbler and a metal barrelling machine?
Collectors love cowrie shells. Used as money for eons right up until the late 19th century, cowries hold a fascination for many people. Here are some hints and tips on where to find cowrie shells and which types of shorelines are more likely to carry them washed in by wave action and tides.
Looking for a great way to clean up real silver coins? Learn how to clean silver objects in a solution of washing soda, hot water and aluminium foil in just a few minutes. A simple chemical reaction will convert silver sulfide back to silver and sulfur, with the silver staying on the coin.
People using metal detectors often find dirty, unusable coins. Here are some tips, with photos, for using a rotary rock tumbler to clean and polish coins.
Want to know which British coins are rare and worth more than face value? Check your change. Thanks to some mistakes made by the Royal Mint in recent years, some coins, specifically a certain 2p and a 20p, are highly sought-after by collectors.
Find out what metals are in British currency, the UK coins that are legal tender, or have been, over the past 30 years since decimalization was introduced. As inflation makes the coins worth less in our pockets, the Royal Mint is continually down-grading, or debasing, the metals in the coins. Are...
Found coins are usually in too poor a state to be used unless they are cleaned up first. Even banks will not accept them. Metal detectorists all need to clean their treasures, but what are the best ways? Here we have a look at the various household liquids that can be used, as well as different...