Native American Indian Brooch Pendant Silver & Turquoise Signed

Offering for sale a beautiful and quite old brooch or pin / pendant, Native American Indian origin, early 1900's, a lovely shape with 15 turquoise rounds mounted in assumed sterling or similar content silver; 1 & 3/4" across and a fabulous age patina. This is from our personal collection, bought forever ago, and has not been polished in a long time. It has a faint scratched signature we think is L.V.Y. or L. V. Z., a local jewelry collector thinks it is a Yaz piece.