hey,
a translation of the add, not litarly but good enough
it says they are blank plates that are attached to drivers door (A) pillar, which normally have the Karmann body # and Color code on them. Also says it is provided with rivets to attach it. It comes from someone who is selling of his collection, the guy will not give a waranty or take it back
thats about it
greets
Jacco
the Netherlands