Not in any reference I have seen, but, it doesn't mean there wasn't one.
Yes
Remington is the oldest operating gun maker in the US.
Well respected maker of high $$$$ guns in Herstal Belguim.
The gun maker never sees a customer. Guns are sold to individuals not by the maker, but by a gun dealer. No, it is not the dealer's responsibility to ask a person what they are going to do with a gun.
Maker or manufacturer.
Yes.
Mainly from the markings on the gun by the maker.
By maker information.
Remington is the oldest maker still in operation.
Colt was one maker who made the GATLING gun.
Contact the maker, gun show, gun shop, library
Write to the Manufacture or go online to the gun maker and request a manual.