Answer:
It really depends on the model. The "Apollo" model is equivalent to student grade violins and those for the advancing student. They tend to be worth from a few hundred bucks to a thousand. However, the "Ardeton" is professional model and the cost of this make, again ranges. I've seen some go for $1500 and others $15,000. If you have a Rushworth and Dreaper violin, I'd highly advise you to go to a local instrument shop or luthier to get an official appraisal. They are the experts and seeing the instrument in person helps a lot. Hopefully that answers your question!