I am working on the boot (trunk) of my fixed head and found these two plates pop riveted behind the number plate. They look factory fitted but were never painted and of course they eventually rusted and have holed the rear panel.
I can only think they were intended to strengthen the panel to support something being bolted there.
"Do or Do not, there is no try" - Yoda
1981 Purple Grinnal 2.0L
1980 TR7 Persian Aqua Drophead.
1977 TR7 4spd FHC Tahiti Blue