Caliber 44-40. Original wood has a few minor dings but generally VG+ with musket style buttplate. Original sling swivels. Fitted with original bayonet that is in fine condition. Mechanics are crisp and tight. Original sights and correct thumbprint dust cover. Very few of these muskets ever show up in a 1st model configuration. They were all high numbered 3rd models. I have only had about half a dozen first models. This gun displays 10-15% original blue with the balance turned a plum coloration. Crisp tight action. Very nice specimen of a rare hard to find gun. Complete with Factory Letter.