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Articles with tag "coin-restoration"
How to Clean a Soviet Bronze Coin at Home: A Simple and Effective Method
There are several ways to buy a coin at an auction and sell it at the same venue for double the price. One of the most effective methods is pre-sale preparation. This is a simple but effective approach that will be especially useful for novice collectors and those who want to make money by reselling coins.
collectors-guide
#numismatics#coin-cleaning#ussr-coins+5
Polishing Peter I's Grivennik: How to Remove Scratches from a Rare Coin
An interesting specimen came in for work: a 1718 grivennik of Peter I, encapsulated in a slab by the American grading company NGC. Such coins, especially in good condition, are of significant interest to numismatists.
expertise
#numismatics#coin-restoration#coin-polishing+5
Why Heating is the Worst Way to Clean Coins: A Visual Experiment
Many beginner collectors face the problem of dirty coins covered in green oxides. In search of a solution, they often turn to online resources, where one can find numerous cleaning tips: from washing and rinsing to soaking in various solutions and even heating.
collectors-guide
#coin-cleaning#heating-coins#numismatics+6