Zuni Inlay & Sterling Thunderbird Pin. Fresh from a Dallas estate comes this a vintage pin or brooch from Native American tribe Zuni. The modernist design is a sterling silver Thunderbird with inlaid mosaic that appears to be made of turquoise, onyx, coral and mother of pearl (we cannot guarantee). This piece is marked on back with an R. " The brooch is 2 3/8" long by 1 1/2 wide, and total weight is 21 grams. This piece is in EXCELLENT CONDITION with original patina!