{HEAD ~ The mobile contact} can consist of a freely swinging lever that intercepts the path of the coins close to the entrance of the path, while the fixed contact can consist of {TAIL ~ a metal piece} defining the rolling route for the coins 
{ HEAD ~ The mobile contact } can consist of a freely swinging lever that intercepts the path of the coins close to the entrance of the path , while the fixed contact can consist of { TAIL ~ a metal piece } defining the rolling route for the coins
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH