Jarrow remained a small mid-Tyne town until the introduction of heavy industries such as coal mining and shipbuilding. Charles Mark Palmer established a shipyard – Palmer's Shipbuilding and Iron Company – in 1852 and became the first armour-plate manufacturer in the world. "John Bowes", the first iron screw collier, revived the Tyne coal trade, and Palmer's was also responsible for the first modern cargo ship, as well as a number of notable warships. Around 1,000 ships were built at the yard, they also produced small fishing boats to catch eel within the River Tyne, a delicacy at the time.