That display of the three early models side by side is an excellent reference. It seems to have finally resolved which model a rough old Victa I once borrowed for a few months in 1963, actually was. I've been trying for years to figure out why it had a pressed metal fuel cap, no cowl at all over the cylinder and head, and no height adjustment system that I was prepared to try to use. Your example looks a whole lot better than it did - it was just kept at a factory for mowing the nature strip, and had been used that way for a long time. I used it as a utility to flatten out the bumpy ground in my newly-built house, and mow the weeds down into a semblance of grass. It did all that without a murmur of protest. I still hate its carburetor though - the crudest I've ever seen, even now, on a series-production machine of any kind.