There were four B10 models, 1967, '68, 69, & 70 but only three front guards/fenders in Aussie models. They differed only in the size, shape, & position of the hole for the blinker.
These blinkers were
1967 Small round dome.
1968 Short spear
1969 Short spear
1970 Long spear
Edited to correct error of fact.
The long spear was positioned slightly lower down & rearward from the short spear location, but only slightly.
The picture shows a spare new 1968 guard that I had painted & ready to go onto my 1968 sedan. I had it fitted up with a new blinker light too, but it was subsequently used in the repair of my 1970 coupe. The pencil line shows the position of the new hole, the rest was filled & the whole guard was painted a different shade of white to match the coupe.