Unidentified - Possibly Gold - Coin | Repro Spanish Peru

Is there any sort of test I can do short of finding the exact weight?

Thats true wd1040 , the one I have is a particularly decieving copy , pretty well done.
Firestarsolo , look at the edges , is there a faint hairline running around the rim ?

I mean magnifying glass. There is definitely some pitting around the edges, but it doesn't appear that there is a distinct line running throughout. It may be in some places, but it's really hard to tell because nothing is really continuous. Should I try to take some pics and post 'em?

For what it's worth, I made a "fake" scale using a ruler laying on its side (perfectly balanced such that no weight=horizontal ruler), my magnifying glass (for the round edge to hold the ruler), and some spare coins. Assuming the weight of one half dollar is 11.34g (which is what I found online), it looks like the half dollar weighs more than the coin. Meaning my coin is a fake. Dang! Still, a neat-looking coin. Myth busted!

lol you're giving me false hope! Using 4 pennies (2.5g) it weighs somewhere around 7.5-10g.

http://www.sedwickcoins.com/fakes/fakeb3.jpg

That looks like this is it; from http://www.sedwickcoins.com/fake_cobs.htm (search for 1711)

http://www.sedwickcoins.com/treasur...goldcobs.htm
(search for 1712) I think these coins should weigh around 25 grams (because it is 8 escudos, as seen by the large "8" in the middle of the two bars on the left image of the coin), so clearly this isn't legit

want me to saw mine in half? :)

also, no problem - it was fun to go on the search for it. Perhaps I'll post some other coins I have on this forum, it's actually quite enjoyable to track down these kinds of things