What is the value of a sears 410 shotgun?

What is the value of a silver streak 5mm pellet gun? Where can you find info about age and value of 16 ga sxs shotgun marked Eduard Kettner SN 15793 with markings Koln on outside of barrel and Nitro Fluss-Stahl-Krupp-Essen? Where is the serial on a Stevens double model 5100? When was LC Smith Hunter Arms SN 108 138 manufactured? What is a New Haven by mossberg model 679 worth? How do you restring a poulan 306a chain saw? How much is your 12 gage jing model jals12-102? How much is a Savage Arms 775A with dog and duck engravings worth? What is the value of a J C Higgins shotgun model 102.25? How old is your Remington fieldmaster model 572 sn A1838791? What chennal is fnc on? Can you use 45 auto ammunition in a 45 acp pistol? Your guns serial number do not have letters how do you find the age? What is musket ammunition? Who made the model 40 22 rifle for Montgomery ward? What is the blue book value of Hopkins and Allen arms company 12 gauge shotgun model U2071? What is the age of a 22 caliber Sears Roebuck Model 6C semi-automatic rifle? How much is a browning 12g PBS field model shotgun worth? Why do shops hold sales? How does one get the bolt out of the receiver on the 3040 Krag?