I have taken original 69 shelby trunk decals off my cars & sent them to ECS to have them made correctly back years ago) & they were brushed on yellow weatherstripping type glue on backsides & i figured a.o smith was having trouble getting the decals to stick to the rough grained fiberglass so they were brushing the trunk weatherstripping glue on decals after they brushed the trunklid weatherstripping glue on at same time. Fiberglass shelby trunk decals always look like they are falling off compared to smooth metal mustang trunk decals that stuck better to the flat surface. Look at the last blue shelby trunk photo & u can see leftover masking tape on the lh side that was used to hold the trunk light wire to decklid when it was painted.Also note the decklid latch bracket with the extra tab on one side only.