fitting a No.419's piston cylinder liner 1990's 

After the piston cylinders had been machined on the Caledonian Railway, 439 Class No. 419 (BR No.55189) new steel cylinder liners were manufactured to fit inside the machined cylinders. This was back in the 1990's when I filmed one of the CR No.419 cylinder liners being fitted by SRPS volunteer engineers inside the old Romney workshop.