Thanks, I think you're on to something there. The reverse side really closely resembles a 1700's Spanish silver coin I saw on the net, but lacked the bird, which could be the Polish White Eagle of the Piast dynasty. The other charactors look similar to the lion, but differ in that the one top right has a rider and the one bottom left looks like a horse? Thru magnification it looks like there's a bird sitting on the king's right shoulder...
Been thru several hundred sites and none of the coins or even depictions of any of the Polish Leaders named Augustus come close. Maybe it's one of the many named "Augustus the Usurper's" that have been out there thru history.
Still looking, love a good mystery......
(got nothing better to do)
TimV