Navajo Nickel Silver and Block Purple Spiny Oyster signed by artisan O Begay. Here is a fantastic shadowbox Silver and Purple Spiny Oyster Squash Blossom Necklace measuring 21 inches in length. The necklace has a hook and eye style clasp and a double strand row of silver beads, naja and eight beautiful pendants. Each blossom style pendant (and the naja) has a wonderful shadowbox design. The purple spiny oyster cabochons have a lovely lavender color. The pendant measures 2 2/10″ with the bail by 1 9/10″.