A sign board is formed on {HEAD ~ translucent/transparent substrate} by attaching fluorescent foils so formed to opposite sides of {TAIL ~ the substrate} 
A sign board is formed on { HEAD ~ translucent / transparent substrate } by attaching fluorescent foils so formed to opposite sides of { TAIL ~ the substrate }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL