^could just be a stamp testing
we loves to stamp on soft metals, when we hold on to a neat stamp
this is very common when elder people visit factories full of buttons,
there is no way to stop them testing those buttons lol
Engelhard became well known for making high-quality bullion products, like gold and silver bars. The company was even documented as the world’s largest precious metals smelter for a time during its heyday. However, Engelhard was bought by German company BASF in 2006 and now focuses on industrial metal, which eliminated the production of their renowned bullion bars.....