This is perhaps a native american set, both marked “solid copper”. The cuff bracelet has some distinct patterns engraved, and the screw back earrings are set with small blue turquoise stones, all in nice vintage condition.
The cuff is for small wrists (perhaps kids?), measures approx. 2-3/4 inches by 1-3/4 inches, the screw back turquoise earrings will fit pierced or none pierced ears, it measures approx. 7/8 inches by a bit under 3/8 inches, collectively weighs 11.8 grams.