Navajo Dendritic Agate Landscape Brooch in Sterling Silver

Vintage C. 1910 -1920 Navajo Dendritic agate also know as a landscape agate brooch. It is an outstanding piece that was likely formed as petrified wood. It measures 2" by 1 3/8". Locking clasp with extra long pin (A clue to its age). Weight: 16.3 grams. Marked sterling and hand made in early block letter stamping.