These means consist of two electrical contacts, one fixed and the other mobile , between which pass the coins introduced, these contacts forming {TAIL ~ part} of {HEAD ~ a detection circuit}  
These means consist of two electrical contacts , one fixed and the other mobile , between which pass the coins introduced , these contacts forming { TAIL ~ part } of { HEAD ~ a detection circuit }
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 OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH