Navajo Silver, Petrified Wood, and Fire Opal Cuff Bracelets

lot of 5, includes a scalloped silver cuff stamped with arrows, thunderbirds, and geometric designs; set with a petrified wood cabochon and repoussé accents; not marked, cuff width 1.25 in., interior circumference 5.5 in. x gap length 0.75 in., weight 21.9 dwt.; PLUS a silver cuff with scalloped edges, stamped with lightning bolts, thunderbirds, bear paws, and geometric designs; set with a petrified wood cabochon in an embellished bezel; marked STERLING, cuff width 1.25 in., interior circumference 5 5 in. x gap length 0.75 in., weight 14.6 dwt.; PLUS a stamped silver cuff with scalloped edges, set with a petrified wood cabochon and accented by silver appliqué; not marked, cuff width 1 in., interior circumference 5.5 in. x gap length 1 in., weight 14.6 dwt.; PLUS a slender stamped silver cuff with central silver appliquéd thunderbird surrounded by graduated repoussé designs; not marked, cuff width 0.25 in., interior circumference 5 in. x gap length 0.75 in., weight 5.5 dwt.; AND a silver wire cuff, set with a fire opal cabochon; not marked, cuff width 0.75 in., interior circumference 4.5 in. x gap length 1.5 in., weight 7.3 dwt.
mid - third quarter 20th century