You need to give more details example serial numbers tell all about age. Condition is next,is it rusty, is the inside of the barrel shinny, does it have rifling? What is the condition of the stock and is it marked?
$500 to $1000
Only for 45 55. I believe all trapdoors made from 1873 on were only 45/70 caliber
The best answer I can give you is to post at http://www.trapdoorcollector.com/
4570 ,
http://www.gun-data.com/springfield_trapdoors.HTML , this website indicates your 1873 Springfield trapdoor carbine was made some time in the first half 1884. It couldn't have seen battle with General Custer,but more than likely help tamed the Alaskan wilderness. ahhh, what that gun could have seen!
There is more than one maker who made 1873 carbines. Which one are you talking about?
I would guess it was a musket from the civil war in 58 caliber. if it now takes a shell it would probably be the 50/70 caliber which is what all the civil war musket were converted to. The year date 1869 would fall under the conversion era of the 58 cal. muskets. The 45/70 rifle did not come into it's own until about 1873
made 1874. if a Carbine it might be around Custers time
It could be considerable depending on the rifles overall original condition.If your rifle has not been changed from its original condition,anywhere from 2,000-4,250 dollars.
A few hundred to multiple thousands of USD depending on EXACTLY what you have.
You have one of the variations of Marlin 1895 - the G, GS, S, Cowboy, or Guide Gun. The value depends on which model you have and who you can find to buy it. The prices run from $400 to $700.
The 45/70 is best kept in the 0-150 yard range out of a lever gun.