The Peckett Steam Locomotive, Boiler Number 1530, was built at the Peckett & Sons Bristol Works and is dispalyed at the Poldark Mine at Wendron, near Helston, Cornwall.

The engine first worked for the Co-Operative Wholesale Society at their Bristol works. In 1961 it was purchased by the Falmouth Docks and Engineering Company and became the Company's 'Locomotive No. 6 '.

The engine was retired in 1978, still in good working order after 59 years'service.

The engine is designed to work at a maximum pressure of 160 pounds per square inch (psi). The annual boiler pressure test was to 240 psi and, as with all such tests, this was a hydraulic pressure test. the reason for testing the boiler using hydraulics (water) is that if there is a fault, then the water will leak from it, if steam or compressed air were used, then a fault in the boiler would result in an explosion.

There are many recorded instances of steam boilers used to provide power for the beam engines at mines in Cornwall exploding, often with fatal results and the demolition of their boiler houses.