Another showstopping MCM/Scandanavian piece from Elis Kauppi for Kupittaan Kulta Oy.  Turku, Finland.
 
Bracelet shown is available here 
(2) polished amethyst spheres, clamped in place by clamshells of sterling silver, on an abstracted, U-shaped shank of sterling silver, designed by Elis Kauppi (1921 - 2004) for Kupittaan Kulta Oy of Turku, Finland.
US size 7.75 -- please note, this may appear to be adjustable, but it is not; clamshells are soldered together
spheres measure 1 1/16 inches across, wide
shank measures 1/4 inch at its narrowest
weighs 10 grams
Marks include anvil and 925 S
Condition:  ery good to excellent, amethyst spheres still have their mirrored polish