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