Does anyone know what this is?

[tikicat02]

[melda58]

Wild guess and probably wrong.  It looks like it would be placed over a bolt of some kind and used to tighten it.  Is it made of stone?

Rita

[cheframsay · Accepted solution]

back in the day when cars and trucks had rear coil springs these were twisted into the spring  to stiffen it up when the spring got weak...

[18704d]

^^^^^^^^^^^^^^^^

This

Lynn

[tikicat02]

Thank you!!!