Identifying the sex of a kiwi vine
I have two large kiwi vines in the backyard of my house that I bought last year. From the thickness of the trunks, the vines seem to be at least ten years old. One of them has a faded label that identifies it as a "Fuzzy Hayward" in a font that one done not see on nursery tags anymore. I assume the second vine is of the same variety, as the leaves look identical. Both bloomed last year but did not set fruit. A neighbour who has lived in the neighbourhood for the last thirty years says that he does not recall the vines setting fruit.
I suspect that both the vines are of the same gender. If that is the case how would I go about identifying the sex of the blossoms when the vines bloom again?
Links to photographs of "Fuzzy Hayward" (or a similar varieties') blossoms, with the sex identified would make things easy and would be much appreciated.