What is this object?

[CDHughz]

Seems like it should be a simple answer, but can't seem to figure it out.

Haha, thanks!!

 

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[mirage83]

Looks like a very corroded spring-clip. The inner arm pivots on a pin and spring and allows you to hook it onto a chain or rope, the other is attached to a cord or cable. I'll see if I can find a picture of one without the gunk.

 

[Tony in SC]

Swivel snap. The ring end is missing. Tony

 

[BosnMate]