I was very pleased to learn the 12ga Field grade in question is a factory 2 barrel set!
The only mystery that remains is the location / history of the shipping location, which was 'Crown Hardware'. Still searching the web for info. Are any of you familiar with this store? And while I don't like posing value questions I am curious how the factory set of extra barrels adds to the value of the gun, since the Blue Book doesn't seem to address that option.