stwisted oak , 835 silver ring , a reminder of the Ostpreussenfahrt , semicircular inlay with amber and cut silhouette of WK I. Tannenberg , 1937 and emblems , on the back with the SBM plaque of Konigsberg State Amber manufactory diameter of 13,1 inches. (33.3 cm)  diameter of amber 3,2 inches (8,2 cm) object from WW II officers estate ar. 1940