This pistol is one of just approximately 2,000 manufactured circa 1842-1847. These have been nicknamed "box locks" due to their internally mounted hammers, but they are still sidelocks. The barrel is marked "USN/1845/RC/P" at the breech, and "R" is marked on the bolster. The lock is marked "USN/1845" vertically at the rear and "N.P. AMES/SPRINGFIELD/MASS" at the center. The stock has "RC" and "JL" cartouches on the left flat.

Fine with 75% plus of the original brown finish remaining on the barrel, aged patina on the brass furniture, and 30% of the case color patterns visible on the lock. The stock is also fine and has numerous minor scratches and dings, distinct cartouches, and nice oiled finish. Mechanically excellent.