Daryl one is a double barreled percussion 12 gage made in Illinois by H. Sears and Company about 1850/60. It has London twist barrels. The other is an Austrian over and under double flint gun. The top barrel is rifled and fired by the left lock. The bottom barrel is a smooth bore and fired by the right lock. It was made in 1768 and has the updated 1795 reinforced cock and removeable brass pan. I’m happy that you noticed the doubles.