It's a Maria Theresia Thaler, probably a fairly modern restrike. The Austrian Mint in Vienna still makes them ... http://www.theresia.name/en/index.html Christian
I have 2 of these... both with holes drilled in them for a necklace.. what a shame... But im pretty sure there were tons of them minted, so im not too worried. Looking good man!!
I have one of those in really good condition, almost like a proof. II got it for $12, did I overpay??
Don't think so. Had you bought it directly from the Austrian Mint, it would have been €16.83 (about $25) for the regular (BU) version, or €23.00 (about $34) for the proof version ... Christian