Triumph Herald Convertable Tonneau cover !

Triumph Herald tonneau cover it has been in the Loft since the 1970s. I have an instruction manual for fitting. The manual stats its a kit but i dont have the brackets all the poppers are on the tonneau cover already, really good condition not a mark on it. I also have another Tonneau cover that have headrest spaces. it was with the herald one so im guessing it fits as well 50 excellant condition