Not to be rude, and those are very pretty pictures but YES it was sleeved.

So back to the original question, did the proof house just miss that detail and re-proof it? Or did they forget to stamp it? What kind of paperwork does the 'smith have to file with the proof house when submitting a gun.

Just so we're clear. YES THE GUN WAS SLEEVED WITH A SET OF DAMASCUS TUBES FROM ANOTHER GUN!

Mike