Thanks. the more information the better chance of identifying the origin of this motor. I have over thirty antique outboards and this is the only one that I have had trouble identifying. I have a Kingfisher outboard with a Villiers engine and a victa outboard. Both of these engines have a similar lower leg the only differance is the top half of the leg. The motor I am trying to identifys leg is different. It is identical to the Firestone outboard leg one of your members found. The only differance being the flange at top of leg .Do you think it possible one of the outboard manufacturers here in Australia may have had some sort of deal with Firestone for the use of there legs. When I purchased this outboard from an elderly gent he told me he bought it new and that it was a Kirby outboard,and that's what,s led me on this goose chase. At least now we know exactly what the engine is just have to hope one of your members can solve the rest of the riddle,thank you.