Superb US Model 1835/1840 Flintlock Musket In Original Flint 
The US Model 1835/1840  Flintlock Musket, is one of the most sought after US Military Flintlocks, due to it being the last of the flintlock era and having such a short production time span. It is often referred to as both the Model 1835 and Model 1840. The confusion of the two dates comes from the approval date for the model officially being in 1835, but actual production didn’t take place until 1840. This model was the last official regulation flintlock musket to be adopted by the US military, had a resemblance to the French Model 1822, and was replaced by the US Model 1842, with its percussion ignition system, two years later. Previous US Model muskets (M-1816, M-1822, and M-1828) were produced at the Springfield Armory, Harpers Ferry, and various other contractors, but the M-1835/40 was only produced at three locations. Those locations were, the  Springfield Armory in Springfield, Massachusetts, from September 1839 to June of 1844, with a total of 30,421 being produced. Daniel Nippes Company in Mill Creek, Pennsylvania, from July of 1842 to March of 1846, with a total of 5,100, and Lemuel Pomeroy of Pittsfield, Massachusetts, from February 1840 to 1846, with a total of 7,000.
By 1842 with the adoption of the US M-1842 and its percussion ignition system,  the US Ordinance Dept. began converting the flintlocks in US Armories over to percussion systems, beginning with the newest and best condition models first. Of the 30,421 muskets produced at Springfield, 26,841 of them were converted to percussion, with some of the 3,580 remaining flintlocks to be converted at a later date, leaving only a few M-1835/40 still in original flintlock. With the number of Flintlocks of this model being so few, makes this musket quite rare and highly sought after by collectors today. 
The Model 1835/40 was originally produced with a flintlock ignition system, was  .69 Caliber, with a 42” long smoothbore barrel with a bayonet lug mounted underneath the barrel 1-1/8” from the muzzle, mounted to a 54- ¾” long black walnut stock, giving it an overall length of 57-13/16”. All of its furniture was iron and was finished in Armory Bright. One of the distinguishing features of this model is the ½” round jaw screw clearance aperture on the cock, which differs from the previous models produced. 
Our Model 1835/40 being offered, is a Excellent condition Springfield Armory produced US Model 1835/1840 Flintlock Musket in original Flintlock condition. It is dated 1842, which can be seen stamped in the lock plate to the rear of the cock, with “SPRING/FIELD/1842” in three vertical lines, is stamped with the “spread winged eagle and shield” motif over the letters “US” forward of the cock. On the left side of the barrel is the proof marks of “V, P, and a Eagle”. On the left side flat of the stock is two sub-inspector cartouches, the largest of the two are script letters “W.A.T” for William A. Thornton. The other is hard to make out and we are unable to verify at this time. Has the letters “US” stamped in the tang of the butt plate. This piece is truly a mint specimen of US military firearms and especially US Military Flintlocks. It is truly in Superb condition, a true beauty that would be the center piece of any civil war collection and nearly impossible to upgrade to a better example!