This a charming sterling silver stegosaurus brooch I bought in late 1980's early 1990's in Santa Fe, NM at Shalako Traders of Old Santa Fe. A wonderful shop of fine Native American crafts. My daughter loved dinosaurs and we fell in love with it. The makers mark is B. W, I believe it is Zuni , by Bryant Waatsa, Jr.. A little tarnish, otherwise pristine condition.