Here’s My Favorite Way To Clean Coins Today, as a more experienced coin collector, this is theonlymethod I use to clean coins. (But I never do this to a high-grade coin.) This works best on silver, but if you have a copper coin that has a lot of black in it, then this will...
Interests:Late Milled Silver and Copper PostedJuly 6, 2021 Many thanks, and truly one of my favourite coins of the collection. The problem with getting such coins is that you try mostly unsuccessfully to match it with others in the series. ...
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Test treatments were carried out on archaeological objects: silver-plated copper alloy coins. The best post-treatment results in terms of efficiency and the overall aesthetic appearance of the object were obtained with physical peelable gels (Agar or gellan gum) containing a treatment solution (2鈥...
The present invention is directed to an acidic hard surface treatment composition which provides a cleaning benefit comprising: an acidic constituent which comprises water soluble organic acid; at least one anionic surfactant constituent; at least one nonionic surfactant constituent; at least one organic...
CLR Remover (available at Home Depot) works great on cleaning copper coins. You just need to soak them in the CLR and all the tarnish will come off. Reply Mitchy June 23, 2014 At 6:27 am Great! I will try yo do it! Thanks a lot! Reply Rodger June 20, 2014 At 11:30 pm ...
You can’t watch daytime TV without seeing at least one or two ads touting the latest and greatest silver or copper polish. Maybe you’ve even thought of buying some for yourself so you can shine your old coins right up! Well, perhaps you’ll want to save your $9.95 bottle of Shiny...
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Case study of silver-plated copper alloy coins. J. Cult. Herit. 2021, 52, 73–83. [Google Scholar] [CrossRef] Guilminot, E. The Use of Hydrogels in the Treatment of Metal Cultural Heritage Objects. Gels 2023, 9, 191. [Google Scholar] [CrossRef] [PubMed] Khaksar-Baghan, N.; ...