Control, w/Knob SVCE (201R, 215R, 2411, 2511,3211)
  201R    Use From #222922 to #261810. Prior to
          #222992 And Starting With #261810 See
          4201470
  215R    Use From #222922 to #264461. Prior to
          #222922 And Starting With #264461 See
          4201470
  2411    Use From #222922 to #264261. Prior to
          #222922 And Starting With #264261 See
          4201470
  2511    Use From #222922 to #264261. Prior to
          #222922 And Starting With #264261 See
          4201470
  3211    Use Prior to #257260.
          Starting With  #257260 See 4201470
  *NOTE:  For Control Knob See 3012410.