Last year, I bought an old (1880's) damascus barrel H&H in London with fresh 2007 re-proof for 2 3/4" shells. Got it home, the novelty wore off, and I decided to sell it.
A potential buyer has it checked by a respected doublegun smith, who reports there is a spot at about 12" from breech where the wall thickness only measures .016". Yikes!
Sorry about that...he said .016 about 12" from the breech.
Dig you're avoiding the "point"...
I'm not concerned with if you would use the gun...
I'm concerned with the fact that I don't believe an English Proof house would consider a gun with barrels walls that thin 12" from the breech for reproof.
If they won't then that only leaves one answer....faked proof marks.
What's the penalty in England....beheading ?