Set of Bad Knee's Red Oak .

[JOHN BOY]

Recent splits from a large red oak , you can see the metal in the wood . Lucky no chains were ruined . I knew they were in there somewhere when the black chips started flying out ! Anyways thought you'd all like a pic of these bad Knee's

 

[pen]

glad you were observant and noticed before damage was done!

 

[Paulywalnut]

Maybe old barbed wire.

 

[Backwoods Savage]

Looks like the x-rays they took of my wife's knees.