Hi guys, Welcome to the Advanced Video Search Engine, and you are watching The "GWB" Method For Calculating 90% Silver | Mathematical Formula For Constitutional Silver Coins. That video is uploaded by Silver Oceans at 2021-07-13T14:30:27-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [-NpuGAZn0_M]