You're really not giving enough information to judge value.
Even thiugh a firearm has not ever been fired, there are many other variables to consider.
How was it stored?
Does it include original packaging and accessories?
Any scratches or dings on metal or stock parts?
How about tarnish on the receiver?
And this is the 1969 "Golden Spike" commemorative version in 30-30? That one seems to be the most common although ther are other railroad commemorative models in various calibers...
Any one of those things plus many more I did not cover could make the price fluctuate wildly.
Hope this helps.