blade

[katana]

Originally Posted by katana

.....a possibillity that these are from an agricultural cutting machine or similar (combine harvester ?) ...they also had the 3 rivet holes

Originally Posted by katana

I could be totally wrong about these....but the wear marks around the rivet holes suggests great force elongated the holes and ripped the rivets out....

Regards David

Originally Posted by tom hyle

Note the marks at the blade base of the one which still contains a rivet (? does not look like a bolt to me?),

EDITED Sorry Tom I have just realised you were refering to a bolt mentioned in another post on this subject. The missing 'tang' appears to have been 'sheared' off .....a lot of force would be required to have done this...