CLASS 7010, 7210 FRAME 5 DC STARTING & SPEED REGULATING RHEOSTAT
CLASS 7210 FRAME 3 DC STARTING AND SPEED REGULATING RHEOSTAT
CLASS 7310 FRAME 3 DC SPEED REGULATING RHEOSTAT
CLASS 7010 FRAME 0 DC STARTING RHEOSTAT
CLASS 7010 FRAME 3 DC STARTING RHEOSTAT
CLASS 7210 FRAME 4 DC STARTING AND SPEED REGULATING RHEOSTAT
CLASS 7310 FRAME 4 DC SPEED REGULATING RHEOSTAT
CLASS 7350 FRAME 3 DC SPEED REGULATING RHEOSTAT