Where was the gas mask made by Garrett amorgan?

What is more powerful a 38 special or a 40 SW? Where is the serial number located on Sheridan Blue Streak rifles? What is the value of a Browning Belgium Magnum Twenty ser 70X 37325 20ga 3inch chamber spec steel barrel vent rib no choke no recoil pad 95 percent plus fired 1 box shells? How old is a Springfield Model 56 made by J Stevens Arms Co Chicopee Falls Serial SP S 7579? What the value for a Ruger M77 270 with a Bushnell Banner 3x9x50 scope It is in fair condition? Do spud guns shoot out whole potatoes? What is the value of a Waltham Hunters pocket watch serial number 3832169 Royal grade 13 jewels movement nickel case engraved 14kt gold? How far a m 16 rifle bullet will travel? When was the Stevens model 9478 410 shotgun manufactured? Golden spike 30-30 rifle model is it gold or brass? What is the value of a 30-06 Western Field Model 724A? How much is a 3121 Stevens double barrel shotgun worth? What is the value of a Hartford firearms double barrel shotgun with dual hammers 12 gauge serial 230521 30in barrel full choke both barrels? How do you unload a 357magnum when cocked back? What is the value of a 38 s and w 5 shot revolver made by harrington and richardson arms co serial number 169153? How does a flash hider on a gun work? Anyone have Hornady reloading data for the 325 grain 458 FTX bullet for the 45-70? Where can you get an ejector for a J Stevens Crackshot 22 rifle? What is the value of colt pocket lite 380 cal? What do you say to colt with a cold?