looks more like a 1858 to me to
Actually the n a a companion is a replica of a 1860,s suiside special stamped my companion,which was produced in percussion and later 22 short and 32 rimfire,an original sold at auction for a mere 120.00 in good condition,gazillions of pocket pistols were made in the old western days,many by unknown makers,copied by all who could sell them.