![How do you test your gold? I just did the ping test on these coins and they failed. I bought from a reputable dealer online. How do you test your coins? : How do you test your gold? I just did the ping test on these coins and they failed. I bought from a reputable dealer online. How do you test your coins? :](https://preview.redd.it/nexh47umdoz81.jpg?auto=webp&s=6f9f65047ea61aea0cb218bdbe001b5871818543)
How do you test your gold? I just did the ping test on these coins and they failed. I bought from a reputable dealer online. How do you test your coins? :
![A large brass Xian Feng Tong Bao (咸豐通寶) 'Tian Xia Tai Ping' (天下太平) coin cast during the reign of Emperor Xianfeng (1851-1861 … | Mint coins, Chinese script, Taiping A large brass Xian Feng Tong Bao (咸豐通寶) 'Tian Xia Tai Ping' (天下太平) coin cast during the reign of Emperor Xianfeng (1851-1861 … | Mint coins, Chinese script, Taiping](https://i.pinimg.com/736x/16/0c/27/160c27387cce64a33594da5190cd3b45--mint-coins-tai-ping.jpg)
A large brass Xian Feng Tong Bao (咸豐通寶) 'Tian Xia Tai Ping' (天下太平) coin cast during the reign of Emperor Xianfeng (1851-1861 … | Mint coins, Chinese script, Taiping
Stack Stick - Coin Ping Test | To Stack Stick or not to Stack Stick, that is the question. Here is a quick video showing the Stack Stick vs the traditionally used
![Twenty five Years of The Republic of China PING Ten Commemorative Collectible Coins Gift Lucky Challenge Coins COPY COIN| | - AliExpress Twenty five Years of The Republic of China PING Ten Commemorative Collectible Coins Gift Lucky Challenge Coins COPY COIN| | - AliExpress](https://ae01.alicdn.com/kf/Sf820101ced0b4f0c9602e06bcaee3725L/Twenty-five-Years-of-The-Republic-of-China-PING-Ten-Commemorative-Collectible-Coins-Gift-Lucky-Challenge.jpg_Q90.jpg_.webp)