lot of 4, all are not marked, sizes include:

a Navajo raised split shank cuff, with stamping
cuff width 1/2 inch, interior circumference 5-1/2 inches x gap length 1-1/4 inches, weight 16.7 dwt.

a Navajo stamped split shank cuff, set with a central turquoise cabochon in a twisted wire bezel
cuff width 1-1/2 inches, interior circumference  5-1/4 inches x gap length 1-5/8 inches, weight 25.9 dwt.

A Fred Harvey era trade bracelet with stamped split shank and set with a central turquoise cabochon
cuff width 3/4 inch, interior circumference 5-3/4 inches x gap length 3/4 inch, weight 10.1 dwt.

a heavily stamped cuff, with repousse accents and set with a central turquoise cabochon
cuff width 3/4 inch, interior circumference 6-1/4 inches x gap length 3/4 inch, weight 15.3 dwt.