Palmetto and others, Be aware that the RIA auction in Sep't 2009 has two S&W shotguns, Lots 3547 & 3627, that are described as S&W Model 10 trench guns. These two guns are fakes, with spurious markings and assembled from parts to fool unsuspecting bidders. I have just finish a telephone discussion with the RIA military arms consultant who now shares my view about these two guns, and a disclaimer will be announced at the time of the auction. It's unknown how the Model 10 nomenclature get entered in the catalog, probably a typo. The guns appear to be Model 916s 12 ga. pumps, with after market embellishments. The true serial numbers are unknown. The serial numbers listed in the catalog, #336 & #1674 are numbers stamped on the side of the frame and are not of factory origin. The US and the flaming bomb stamps are spurious, as well as the "United States Property" in the opinion of myself and the RIA consultant, (who is the US Army's Rock Island Armory mlitary arms procurer) . This type of firearms is well associated with a certain Southern California arms dealer, known for his "Creative examples",as he defines his work. Ed.