Found in this older display case. This sling has the hook style end and is black leather.
Area on the sling that is thinner in width which is what I think from stretching from the weight of the. I did not find any markings on the sling, although because of the heavy use it is possible that these. Have been covered up or worn off over time. Measures about 46" by 1", with the thinner area down to 1/2" and the hook extends out about 1".The case measures about 22 x 12 inches. Weight 3 pounds 10 ounces. This item is in the category "Collectibles\Militaria\Civil War (1861-65)\Original Period Items\Other Civil War Original Items".
The seller is "laz-e-bid" and is located in this country: US. This item can be shipped worldwide.