Original U.S. Civil War Springfield Model 1863 Type II Percussion Rifled Musket - Dated 1864 Military Maps and there are some labels

and there are some labels on the inside as well

closing the end of the magazine after the head of the cartridge had passed into the carrier

With this in mind

 for the 3rd Grenadier Guards Regiment

The regiments strength was so greatly reduced that companies were at once reorganized on the basis of three small platoons per company and a certain amount of drilling was carried out on these reduced conditions

Original U.S. Civil War Springfield Model 1863 Type II Percussion Rifled Musket - Dated 1864 Military Maps and there are some labelsOriginal Item: Only One Available. The Springfield Model 1863 rifled musket is a . 58 caliber rifled musket produced by the Springfield Armory between 1863 and 1865. The Model 1863 was a minor improvement over the Springfield Model 1861. As such, it is sometimes classified as just a variant of the Model 1861. The Model 1861, with all of its variants, was the most commonly used longarm in the American Civil War, with over 700,000 manufactured. The