5 things should tell you that you're looking at a RARE and HISTORIC Coin -
1) The portrait of the young Franz Joseph I, Emperor of the Haus of Habsburg who ruled Austria from 1848 through WW1!
2) The ornate double-headed eagle holding Imperial sword and orb on back.
3) The denomination of One FULL Silver Taler or Thaler (aka a "Dollar").
4) The date 1857 and the mint mark Vienna.
5) The exceptional state of preservation - very close to uncirculated!
Priced up to $1500 on eBay!