The value of a Remington 8 rifle varies greatly and is based on the condition of the gun. As of 2013 this rifle is valued between $100.00 to $350.00.
100-1000
what is a Remington 22 nylon66 long rifle worth
alot
A Remington Mod 8 in 95% conditiion is about $500.00
Which one, what condition?
No such model number
what is a remington 7 milemeter in great shape wourth
there is no such thing
Depending on year and condition of the rifle, anywhere from $100-250.
Remington's web site has a section with history on each of its products.
There is no "Remington USA 1906" rifle although there is the Remington Model 8, which was introduced in 1906. This is a semi automatic rifle that was chambered for one of four possible calibers; .25 Remington, .30 Remington, .32 Remington, or .35 Remington. The caliber that your rifle is chambered for should be stamped on the side of the barrel, just forward of the receiver.