Unit B - Frame Model: CMB4, Serial # 84047, 8 7/8" inch stroke, 496 RPM, 7 ¼ diameter cylinder in Position No. 1, 10" diameter cylinder in Position No. 2, 7 ¼" diameter cylinder in Position No. 3, 10" diameter cylinder in Position No. 4; Name: Clark, Type: MB, Size: 11", Bore: 10", Stroke: 8-7/8", Serial #: MB1663, Discharge Pressure: 339.7, Max. Working Pressure (LBS GA): 400, Max. Working Temperature: 350 Deg. F, Hydro Test Pressure (LBS GA): 600, Crank End Clearance: 33.13%, Head End Clearance: 31.58%, Crank End Clearance: 1/16", Head End Clearance: 1/16"; Name: Clark, Type: MB, Size: 11", Bore: 10", Stroke: 8-7/8", Serial #: MB1662, Discharge Pressure: 339.7, Max. Working Pressure (LBS GA): 400, Max. Working Temperature: 350 Deg. F; Name: Clark, Type: TVM, Size: 8-1/2", Bore: 7-1/2", Stroke: 8-7/8", Serial #: MB1665, Discharge Pressure: 671.3, Max. Working Pressure (LBS GA): 850, Max. Working Temperature 350 Deg. F, Hydro Test Pressure (LBS GA): 127.5, Crank End Clearance: 31.0%, Head End Clearance: 28.51%, Crank End Clearance: 1/16", Head End Clearance: 1/16"; Name: Clark, Type: TVM, Size: 8-1/2", Bore: 7-1/2", Stroke: 8-7/8", Serial #: MB1661, Discharge Pressure: 671.3, Max. Working Pressure (LBS GA): 850, Max. Working Temperature 350 Deg. F