Original U.S. Civil War Early “Hardpack” Knapsack with 51st Regimental Unit Marking Painted on Flap Brunswick Rifle possibly where the hanger ring

possibly where the hanger ring was originally

so we do not believe that all of this was an arsenal level modification

The inside of the barrel also shows oxidation

For all practical purposes

this was deemed not the best color to use in Küstenartillerie (Coastal artillery) emplacements

Original U.S. Civil War Early “Hardpack” Knapsack with 51st Regimental Unit Marking Painted on Flap Brunswick Rifle possibly where the hanger ringOriginal Item: One of a kind. This is an original U. S. Civil War wood framed "Hard Pack" Knapsack or Backpack. Dating between the 1860 1865 this Union issue Civil War pack is painted on the front flap with a 51 in white. There were multiple regiments with the number 51 in the American Civil War, including regiments from Virginia, Alabama, North Carolina, Georgia, Wisconsin, New York, Ohio, and Pennsylvania, so we cant say for certain which one this