In 42, 43 and 44 all was 56% Copper, 35% Silver, 9% Manganese. In my transition coins list I do not see such. I thing an XRF will be adequate to know if it is not an wrong alloy mixt due to the relative color. Any Jeweler shop can do this test if you do not posses one.
Acid test it is not recommended. Almost if it is an Jeweler test. Fake at this stage of the coin? who will do? and for what?. What it is the diameter and the weight? To be at this color the brass alloy must have max 20% of silver or other white metals. Or maybe this coin come from an shells recuperation roll planchet.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use