Outstanding Civil War Gutta Purcha Knapsack, in incomparable condition. Photographic evidence shows the white canvas gutta purcha patent knapsack was used by many regiments, yet surviving examples are almost non-existent. Made from sheets of thin white cotton vulcanized onto a gutta purcha center, the result was a pliable and waterproof container that was favored by many. Most likely its expense prevented it from being used more widely. This specimen is among the very best examples of this rarity. The body is without holes or tears and all the shoulder and blanket straps (attached by rivets) are complete, although stiff due to age. There is a negligible piece missing from a flap on the inner compartment and only one small roller buckle has become detached but is present. The flap measures 17" x about 15" and retains almost all the original blue paint on its binding. The inside of the flap is nicely marked with a large 6" wide red, circular maker's stamping stating is was made by "The Gutta Percha Mfg. Co. 139 [Bro]adway. N.Y." along with "Gray Knapsack" and other patent information.