Your posts are tiring-- boring and tiring. In terms of that piece of steel's ability to provide clues it is contaminated evidence. Stop wasting your time and mine with this childishness.
the fatigue you might feel from reading my posts, has nothing to do with the thread.
however, I shall keep this post in my lock box, for the next time you ask me for evidence.
....and btw, if this hunk of steel is "contaminated evidence", then so is the crap found on the Brooklyn Bridge or in that chick's A/C unit & windowsill, that was used to "confirm" the presence of thermite.
Checkmate.