The first picture with the snake thing & the other bit I'm not sure of. The right hand bit looks like an 18th C furniture hardware.
The left hand 'Ring Thing' looks like it is ancient, maybe a Roman Ring or swivel?? Ring Thing next to it, probably a medieval fixing loop.
The only thing I'm 100% sure of is the Rare Saxon Wrist Clasp, circa 6th-7th C AD. (Next to the needle looking thingy!)