In his edition ‘507 Mechanical Movements’, Henry T. Brown has given very simple sketches and brief descriptions of different movements. Since many are in use, it is easier to understand and depict. But some are very challenging to interpret still. One such is movement No: 54. Many have asked us to discuss about this movement. We have put in our best efforts to depict this movement. In that process, we have modified as to give a better picture. If any of the subscribers have different opinions, please discuss; welcome.