Sounds like you have an 1889 model that was rebarreled sometime in it's life with a model 1894 barrel in 25-20. I say this because the '89 was introduced in 32-20, 38-40 and 44-40. Apparently the 25-20 was added later, as Brophy mentions that 34 were produced in that model. It's unlikely you have one of these,but if you do, WOW!, you got yourself a rare rifle. Even as it stands, an '89 is a pretty neat rifle, and the 25-20 a great small game round. Perhaps my favorite in my early 1894 rifles. Would be about ideal for European hare, fox, maybe capercallie? That would be neat! Congrats on having a great little rifle.