No I do not think that's correct for the GTV trunklid. Probably from the tail panel of a Berlina? It's in very good condition as is the one next to it (smaller with badge attached) which is for the dash of a 69 GTV.
The question has come up, which of the two (smaller and larger) is appropriate for the tail panel of a Berlina? The overall lengths are @ 148mm and 132mm. I (with Andrew's help) will post an updated photo of what is left later today.