6 Silver Coins of WW1

Six silver coins of WW1 include: 

Austria, Corona, / Silver, 0.1342 oz Diameter: 22mm / Weight: 5g, 0.8350 

Obverse: Franz Joseph Head, right-facing

France, 50 Centimes, Silver 0.0671 oz. Diameter: 18.1mm / Weight: 2.5g, 0.8350 

Obverse: Figure sowing seed

Germany, 1/2 Mark, Silver 0.0804 oz. Diameter: 20mm / Weight: 2.77g, 0.9000 

Obverse: Denomination within wreath

Great Britain, 3 pence, Silver 0.0420 oz. Diameter: 16mm / Weight: 1.4168g, 0.925

Obverse: George V head, left facing

Russia, 15 Kopeks, Silver 0.0434 oz. Diameter: 19mm / Weight: 2.6994g, 0.5000

Obverse: Crowned double-headed Romanov eagle

United States, 10 cents, "Mercury Dime" Silver 0.0723 oz. Diameter: 17.8mm / Weight: 2.5g, 0.9000

Obverse: Liberty head in winged cap, left facing