David Andersen sterling ring , 
circa 1970 stamped d-a, 925s, scale, norway-sterling 
size, us 6 3/4 - eu 54 - 16,25 mm 
overall L. 7/8” W. 1/2“ H. 1” 
L. 2,22 cm W. 1,27 cm H. 2,54 cm 
weight 7,3 gram.