London Brick company j94 Austerity saddle tank in Dan's workbench Blog A blog by Dan Griffin Posted December 1, 2017 Just discovered Dan's "London Brick Co. Ltd. No. 5". Can any one tell me what that is on the left running board just ahead of the cab?? Is it perhaps a generator?? I can not tell from the photograph. THANKS TRAINMAN 119 Not a generator as such, just some small details added from the scrap box to represent a compressor for the air brakes.