I have recently gotten hold of this 2cw Massey air hammer. It is originally from the NZ railway workshop in Christchurch, New Zealand and has had a busy and full life. Christchurch Blacksmith Noel Gregg bought it from the closing railway workshop in about 1985 and used it until about 2015. He was my landlord and mentor as a beginning blacksmith knifemaker 25 years ago. I was only allowed to use it once or twice during the 10 years I worked beside him. While it had not been used for 4 or 5 years, it had been stored well and no work was required on the cylinders.