An interesting gun and one made for use in India and Africa etc. It has smooth 'non-fouling' oval bore rifleing; hence the sights. Quite collectable. Meant for shot and solid slug. A sort of all round gun and was Lancaster's answer to Holland's 'Paradox' guns. They don't come up for sale vary often. Some of the British auction houses will have one come through from time to time but prices that guns make in the U.S. vary widely to that in the U.K. Lagopus.....