We are on safe ground in assuming that nearly all of the soldiers who fought in the Revolution carried some sort of pocket knife - so many have been found. Many were dug up at camp sites and although badly decomposed from over two centuries in the ground, we were able to determine what they looked like and how they were made so that our reproductions are quite accurate. Other prized collector's items were graciously loaned to me for copying.
Bolsters are of brass or steel.
None are marked in any way. A popular knife judging from the numbers still in existence. Light, sharp and useful. Positive lock holds the blade open. A pull on the ring pulls out the spring which unlocks the blade.