Austrian Sterling Silver Necklace and Bracelet

European sterling silver pieces are hard to come by and found in this condition, very rare. Both the necklace and bracelet are stamped with 835, the Hoopoe head with a 3 on the left (representing 835 silver) and a "W" to the right (representing Vienna) and the artist's initials (the first being an "A" and the 2nd we could not decipher). The bracelet is for a smaller wrist measuring 6 1/2" x 13/16". The matching necklace is approximately 17" with the largest stone 1 1/8" x 7/8". The green marbled stones in the necklace may well be Russian Seraphinite but we're not experts so enjoy their beauty as we have.