thefoundryman
chrono-synclastically infundibulated
Templar reliquary, or Roman Construction Site Refuse?
http://www.telegraph.co.uk/news/newstopics/howaboutthat/7350166/Nail-from-Christs-crucifixion-found.html
Now before you go off spouting about how this is the most common form of roman execution, blah,blah,blah....
There is imperical ways of testing the natural "Patina", , on the meatal.
The context of how it was found, i.e. looted from jerusalem by the templars, and handled delicately through the ages, treated as a relic, is indicative of the well preserved surface on this relic.