11.3 grams 1915 Austrian Gold 4 Ducat Uncirculated Coin Set In Gold Ring

  
Extremely rare Austrian 4 Ducat Gold Coin, set in 10k gold band. Note - I do not know the actual ring size. Coin is extremely pure 20k. Coin dated 1915, featuring Emperor Franz Joseph I.

Coin extremely pure - composed of 98.6% pure gold, with a precious metal content of approximately. Historical significance, collector's item.