Yeah, I agree with the article that many are underweight. But there are quite a few that are the correct weight. There are even instances of fakes being made with metal of too high of a fineness and being too heavy. Yes, it happens. And it really isn't all that uncommon.
Do these solid gold cast counterfeits also pass the ring test? The article states that most of the cast counterfeits just make a thud, but I wasn't sure if that was based on the metal that was used or the cast technique itself. Just curious.
Cast coins do not ring. Never could figure that out, bells are cast and they ring. But cast coins sure don't.
Ok. Then this would be good for the OP to try in addition to getting a better photograph of the seam. If the coin just "thuds", then we'll have our answer.:smile
A lot of bells are cast in centrifuge molds, which evenly distributes molten metals. Coins are cast in globular casts, so their structure isn't tight. Of course, there are acceptions to both. Guy~
To coleguy's point.... yes, there's something clearly wrong with the arrows. Take a look where the shafts enter the arrowhead. On genuine specimens, the shaft is raised above the arrowhead. On these, they aren't. The shaft and heads appear to be equal height and there are incuse lines which define the shaft. The "shaft on arrowhead" is one prime place to look for light rub and weak strike, not unlike the ribs in the leaves.