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MalcolmRobinson - (2/21/2013 6:47:11 AM)
RE:Massey-Harris 12-20
Hello Joe,

I have several of these yearly M-H Blackstone full line catalogues and will post more later, in these wherever the 12-20 Orchard is photographed it shows the set back (short wheelbase) tractor. None of the Wallis 12-20 Orchards we have seen in preservation have this style and from memory the Nova Scotia M-H 12-20 recently seen at Portland Indiana has the regular axle, so was this something specific to Orchards in UK?
Of course later in the styled Red Pacemaker standard agricultural tractors we see both short and long wheelbase, maybe they learned something from these short wheelbase 12-20's and their ability to turn in tighter spaces.

No it's not a 25 looking at the smooth cylinder block on the left side behind the manifold makes it a 12-20 for me, the 25 bulges out at the top near the head surface.

Whilst we have been talking rubber tyres on early British tractors, here is a centre page advert from one of my GP, 25 and PA  US catalogs with a nice advert for rubber tyres.

Watch out for the next interesting photo I have found for you and Tom.