I have been reading some threads and websites but simply can't figure out for sure what coin this is- I seem to think it is a 1794 8 reale but considering loss of detail and how similar such coins look I can't seem to be certain. Any help with ID and/or value would be appreciated!
Based on your picture, size compared to the dime, my guess is your coin is 4 reales. An 8 reales is more than twice the diameter of a dime, and this coin obviously is not. If you can physically measure it or weight it, I can confirm that, but I'm near 100% certain I am right anyway. I can't make out the entire date but it looks like 178x or 179x, which corresponds correctly to the rev design.
It is a coin from the Dominions of Spain. Bust of Charles IV with title Carolus IIII. ...given the size, my guess is a 2 reales; but this is not my expertise. If it is a "2"; about 92 1/8 grains of silver. Not sure of value; but in 1857, you could redeem that at the mint for 23.5 cents after it lost legal status in the US.
