I just talked to the Virginia owner of the guns - it's getting more interesting. The (2) guns previously mentioned are Perazzi SCO Models. The pair of Perazzi's, I now learned, were in a single double oak and leather case. A third gun was also involved (new info) which was stored in the second oak and leather case made by the same case manufacturer. This third gun is a Piotti Monaco No.3. also coin finished. The owner did not know the specifics of the finishes applied to the actions other than they all had a coin type finish.

He commented that the blackening happened over a one week period and covered all sides of the coin finished actions (3 guns) plus also had red rusting on other exposed steel surfaces. The guns, over this one week period, were stored in the (2)cases with the case lids open sitting on a pool table top in circulating room air.

The (2) cases were sent back to the maker and new case linings were installed - he believes ultrasuede. The owner has not used the cases since other than to put some chemically cleaned nails and steel wool in the cases to look for any potential rusting problems - so far, so good. He thinks that the problems may origionally be related to either the lining or glue used. The
case manufacturer has not offered any explainations.