Chris,, I'm collecting these things for 40 years. There are a couple here doing it longer. and we even have a manufacturer here.. anyway..

These rings are made with silver and a press and a die. These photos show casting faults all over them,,background faults, casting 'dots'..
Example the background to the RoW ring even though is small [its bigger on their site] the ring background is real nice and smooth. this one ,,well just has problems..
The last photo I posted is real weird. The laurel leafs are mushy,,but a couple mm away there are sharp lines, [and a fault].
It's cast,,,its not the end of the world for $40...

*Best thing to do is look at a topic here for early pieces like the Patriotic rings. Everything nice and smooth, finished very well.. The more you look at authentic rings the more easy it is to spot something postwar..