During the Civil War, Frank Wesson supplied around 3,000 of these carbines to B. Kittredge & Company of Cincinnati. Kittredge then supplied 760 to Indiana, 1,366 to Kentucky, and others to Kansas and Missouri. Most were then issued to units from those states and had the marking "B. KITTREDGE & CO./CINCINNATI, O." added next to the standard "F. WESSON PATENT/OCT 25 1859" barrel marking. it has a blade front sight, two leaf rear sight, smooth stock, and has the early style frame with the slotted link on the right side near the breech. Sling swivels are fitted on the underside of the barrel and the lower tang.

Fine. 50% plus of the original blue finish remains. 40% of the original casehardening remains on the triggers, hammer, and buttplate. The sides of the frame at the breech have numerous scratches, and there is also some light pitting. The stock is also fine and has only minor dings and marks and an even oil finish. The markings are clearly legible, but some are light. The action functions fine.