The first rule of coin collecting is: DO NOT CLEAN YOUR COINS. This is the most important piece of advice for any collector, new or old. Serious collectors and experts agree that most coins should ...

Scrubbing old coins can deteriorate the inscriptions, which will decrease their value substantially. Use less aggressive ways of cleaning old coins – an efficient method is to soak them in vinegar or ...

A weekly column dedicated to “digging out” current information about precious metals, coins and other numismatics. A question I get quite often from my customers is “what can I use to clean my coins?” ...

Let’s say you’re clearing out your parents’ or grandparents’ attic and you happen to spot a box full of coins. Or maybe you’re shopping at the secondhand store when you get a unique piece of paper ...