Many British officers assigned to Africa and India chose Lancasters as their personal sidearms, but the total production of these pistols is estimated at just 712 further subdivided into smaller volumes in the various calibers. The top flute of the barrel cluster is marked "CHARLES LANCASTER PATENT 151 NEW BOND STREET. LONDON." and has a blade front sight, and the left flute has "455 CF." The breech face is stamped "PATENT CHARLES LANCASTER" in a circle. "7163" is inscribed on the trigger guard, it has an oval bore, finely figured checkered grips, and a lanyard ring is on the heel.