This comes up a lot. The ballpark is from about 300 to well past a thousand. It's like asking, "What's a car worth?"
Basics: "Rifle" models are usually worth more than carbines, i.e. 26" barrels vs 20" barrels.
Type of buttplate (curved or flat), forend (barrel bands or nosepiece? How long?), sights (tang sight, flip-up barrel type, buckhorn, semi-buckhorn, etc.), and of course, barrel profile, round, octagon, or half-and-half. Also magazine length. Full? Half? Button?
Condition is a big determining theme. Refininshing diminishes value in almost all cases. Any special features such as extra-long or extra-short barrels, set triggers, factory checkering, can add substantial premiums.
The most common Model 1894's on the exchange are carbines. In decent shape they tend to run $350 to about $475 or so. Rifle versions with round barrels, about $200 or so more. Octagon barrel, another hundred or so.
