This twin lamp front grille is from a Canadian export model HB Viva.
The headlamp apertures are 6" to accept 5.75" FD Victor or Magnum size lamps. I do have the Canadian lamps to go with it, but I don't think they would be MOT compliant for UK RHD.
It's not perfect. It has some minor marks and very minor corrosion in one or two places around the edges - but it's in otherwise good condition for a fifty year old item.
I will email some more detailed pictures to anyone interested (our website only allows three pics per item).
Offered to club members first. PM me with any sensible offers?