BSK is signature for B. Steinberg-Kaslo Company. This 1950's demi-parure is designed with goldtone flowers and leaves.  The necklace is choker length with a ball and fish hook clasp.  The bracelet is 7 1/2" long and 1 1/2" wide.
 
BSK produced many styles of jewelry but they are best known for their "My Fair Lady" brooch series that sold in theatres during 1962 movie starring Audrey Hepburn and Rex Harrison.