All I can say about it is that you probably mis-read or mis-typed the date. 1833 is about 40 years too early for a Springfield. People at the Trapdoor Collectors site should be able to help. Check the link at the right >>>> According to the stamped plate......first line "SPRING" second line "FIELD" third line "1833" OK, you have something even older than a Springfield trapdoor. Is it percussion or flint? I have limited references on something like this, but these markings would be correct for a Model 1816 U.S. Flintlock Musket. It wouldn't have been used in the Civil War as a flintlock, but I would imagine a lot of them were converted to percussion between 1845 and 1860. I think you may find some experts who can help at antiqueguns.com. Post as detailed a description as you can (all markings, caliber, barrel and overall length, how the barrel is attached to the stock (how many pins or bands)), in the Pre-1898 section of Ask Our Experts.
If it is a lever action, the model number will be behind the hammer.
What is marked on the top tang behind the hammer, and what is marked on the left side of the barrel? sales@countrygunsmith.net
Equinox
With a center punch and hammer.
Brachiocephalic
Which model??? Should be marked on the tang of the rifle behind the hammer. The year of manufacture for serial number 9086 is 1885. from:http://armscollectors.com/sn/marlinlookup.php
If your pump 12 ga. has an exposed hammer, it's most likely a model 1898, as all later models of exposed hammer Marlin shotguns had the model marked on the upper tang behind the trigger. If it is not an exposed hammer, then the model designation is on the bottom, where the receiver meets the mag tube.
Persephone's return to the Earth and Demeter marked the beginning of the first spring.
The end marked with a band is the cathode.
Fall and Spring
Fall and Spring
Not without pictures