Radiator overflow bottles

[the ski man]

hi all,

im hoping to get some direction from the oracles as to what radiator overflow bottle my HZ should have been fitted with.

RSP stock this one:


my good mates at the wrecking yard let me have a snoop out the back and find the factory bracket to mount this bottle on the inner wheel arch above the battery.

im not sure if the bottle above is correct (it seems like its just a re-printed windscreen washer bottle)

can someone please confirm or deny if this bottle and its location are correct for my 77 hz?

Ski Man