Manufactured around the 1850s-1860s. It has Lancaster's patented oval bore rifling, an adjustable blade front sight, notch and folding ladder rear sight adjustable for windage and elevation and marked "C LANCASTER'S PATENT," "LANCASTER'S PATENT" on top of the breech section, London proofs and "50" bore markings along with "LW," "1," and "O" on the bottom of the barrel; gadroon engraving on the hammer, simple line borders and "LANCASTER" on the lock, steel furniture, sling swivels and eyes on the front barrel band and butt, and a nearly full-length stock.

Very good plus with strong traces of original blue in the protected areas, gray and brown patina on the balance, minor oxidation, and general mild wear. The stock is also very good and has some light scratches and dings throughout, a minor crack to the left of the lower tang, and two discreet filled holes on the top of the wrist where a peep sight was likely fitted. Mechanically fine.