Authentic Antique UITA 22 Native American Petrified Wood Sterling Silver Brooch

Authentic Antique UITA 22 Native American Petrified Wood Sterling Silver Brooch Stamped UITA 22 tested positive for sterling silver. UITA is the stamp of United Indian Traders Association, which was formed in 1931 for the express purpose of authenticating Native American Indian crafts. Works that have this stamp are becoming more & more collectable. UITA Or sometimes as shown above UI (arrowhead) TA UITA 1 Gallup Mercantile, Gallup UITA 2 C G Wallace, Zuni UITA 3 Bert Staples UITA 4 Fred Harvey Co UITA 5 ? UITA 6 Don Smouse Borrego Pass Trading –Northern New Mexico UITA 12 Frank& Al Packard, Santa Fe UITA 15 ? UITA 17 Hubbell at Ganado & Oraibi UITA 18 (21?) Cousins Bros, Pine Springs UITA 21 Julias Gans Southwest Arts & Crafts/Plaza in Santa Fe NM UITA 22 Toadalena UITA 29 Hubbell at Windslow Half dollar is for size comparison and not included in the sale. Thank you!