The Flobert action was intended ONLY for shooting very low powered cartridges, such as .22 BB caps, and is not strong enough to fire modern .22 ammo safely. The value will be entirely dependent on the condition and originality of the gun. Most are not very high, selling for $50-$200, depending on exact model.
In the year 1890,as a model No.4 rolling block rifle.
25-125 usd
There is no one rolling block rifle, and no one answer. Most are held on pins that must be pushed out with a pin punch.
5.56 or 223 cal.............................
100 USD
The flobert was a type of European rifle (usually French or Belgian) used for short range target shooting. They used very low powered rim fire ammunition, and the system of closing the breech is very weak. These should NEVER be fired with standard ammunition, even if it fits. Link below will take you to photos of Flobert firearms. There were also Flobert pistols.
In order to determine the exact value of a Remington Rolling Block rifle, a few different factors would need to be taken into consideration. Some of these things would be the age and condition of the rifle.
No- but Google does: http://www.retting.com/g/belgflobertrifle.jpg
No such caliber.
Features and markings.
Which model?
Civil War was 1861-65; obviously, the Remington rolling block came out later. Is it a military rifle? What caliber? What condition? All these things affect value. Ranges of rolling blocks are from $550-$4000.