a few unidentified parts

[djkam]

these things were laying near a footpath along a small creek, anyone got idea's? the big ring could have something to do with a horse carriage?

 

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[dugupfinds]

Yeap - a rein guide or terret ring

 

[Angelo]

Could the first one be part of a Bunzen Torch? (mini butane torch)

Tony

 

[Charlie P. (NY)]

I think you're right or close. Some kind of needle-valve for gas or fluid regulation. Could be to anything from a carbide head-lamp to an aquarium bubbler.