Hi Mal,
Thanks for the reply

You can see lots of photos, from all angles of all three at:
http://s941.photobucket.com/user/g_barrington/library/Victa%2018sI have just added engine numbers to my first post - maybe that will give you some more clues.
Shame about the Blue one - I really quite liked it in blue

As I have stated above - I'm new to restoring Mowers, so I want to make sure that none of the 2 I've obtained are of any real historical value, and nothing too rare - I'd hate to think I'd lucked upon something really quite rare and valuable that should have someone who knows what they are doing restore it - and then I just blunder through and wreck it!
Oh!! And by the way - I suspect the recoil starter on the Model 2 is not original, the paoint looks quite a bit different to the rest of the mower.
Gordon