1915 4 Ducat Austrian/Dutch Gold Coin (AU+) Tweet Details Brand: Austrian Mint CoA: No Diameter: 40 mm Edge Design: Reeded Face Value: 4 Ducat Issuing Country: Austria Manufacturer: Austrian Mint Metal Type: Gold Product Type: Coin Purity: 0.986 Series: 4 Ducat Thickness: 0.7 mm Weight: .4438 Troy Ounce Year: 1915