Western-Themed Belt Hardware Set; Heavy Silver-Plated Copper

Pics 3 & 6 are typical; the other 6 pieces are essentially identical. The 12 'conchos' were apparently secured to the belt with caps (pics 4, 5, & 7). 11 of them were removed by snipping the posts beneath those caps. The loose pieces were all I got, without the trimmings. Those conchos are 1 9/16" long, ~11/16" wide, an' <1/8" thick; they are dead-flat at the back, slightly domed on the front. All are cast, none are marked; I have a sense that they're first half 20th C, but would welcome your comments an' suggestions. Thanks for lookin'!