Type of Finish: Blue Finish Originality: Factory Original Bore Condition: The rifling is sharp. Overall Condition: This gun retains about 95% of its metal finish.We do not have any records from other importers of SKB manufactured shotguns: The SKB factory in Japan closed operations in late 2009.All documents pertaining to shotgun production and exportation were turned into the Japanese government.I can give you a lot more trivia, but I'm guessing you might have more than you wanted by now ....We only have records of firearms that we actually imported. In most cases, the shotguns will have a serial number prefixes of either NS, NSG, NA, and AS.You can contact us, with your serial number, and we will look up the date we imported the gun.Calibers: 204 Ruger, 218 Bee, 22 Hornet, 222 Rem, 223, 22PPC, 22-250 Rem, 220 Swift, 6mm PPC, 6mm Rem, 243, 257, 25/06, 264, 270 Win, 270 Weatherby, 280, 65 Rem, 6.5-284, 7x57, 7mm Rem, 7mm STW, 7mm/08, 30-06, 30-40 Krag, 300 H&H, 300 Weatherby, 300 Win Mag, 308 Win, 338 Win Mag, 357 Mag, 375 H&H, 38-55 Win, 404 Jeffrey, 405 Win, 416 Rem, 416 Rigby, 45-70 Govt, 450 Marlin, 458 Win, 458 Lott The above chart shows the approximate first serial number shipped for the indicated year.This number should be used as a point of reference only.It is not necessarily the very first serial number shipped, but it can be used to determine the approximate year your Ruger firearm was shipped.It has a really low serial number, does anybody know where to date this gun? They also offer an official Authenticated History for .LSB#: 110408JR3 Make: Weatherby Model: Mark XXII Serial Number: 07391 Year of Manufacture: Modern, FFL Required Caliber: .22 LR Action Type: Semi-Auto Rifle Markings: The right side of the barrel is marked "Made In Italy". Stock Configuration & Condition: The stock(s) is/are nicely grained, checkered and varnished.