Springfield Model 1842

This is the lock plate and Hammer from a model 1842 Springfield rifled musket which I acquired from a civil war relic collector in Virginia.
The model 1842 was a 69 caliber musket adopted by the United States Army in the mid 19th century and was the last smoothbore musket issued by the United States Army as well as the first weapon to use percussion caps rather than a Flintlock firing system.
The 1842 was standard issue during the Mexican War and was still in secondary usage by state militia units on both sides during the Civil War.