Depending on condition, $350-$450. The engraved, silver plated version is higher.
made in 1888
With the serial number that you provided,your Springfield model 1873 Trapdoor Carbine was produced in the year 1877.
made in 1875
If you wish to supply the serial number,I can look up the date of manufacture for you.The serial numbers for the Springfield trapdoor rifles and carbines are in the general domain for people to find.
made in 1874. check it out but I think that is what is called a pre-custer carbine and it's value is higher. check it out at: trapdoorcollector.com if I'm right he will make you an offer...............
your trapdoor was made in 1874
your springfield trapdoor rifle was made in 1880,with the serial number that you provided.
With the serial number that you provided,your Springfield Trapdoor Model was made in the year 1884.
Your serial number indicates that your Springfield trapdoor model rifle was made in the year 1887.
With the serial number that you provided,your Springfield model trapdoor rifle was made by Springfield armory in 1883.
On top just behind the trapdoor opening. 4 to 6 numbers probably.
With the serial number that you provided,your Springfield model 1873 trapdoor model rifle was produced in the year 1875.