[David_Hayward (RIP)]

Hanno, thanks for the input. The trailers were apparently to contract S/M 6288 'Trailer 1 ton 2wh G/S' with one batch 'G/S and/or Gen.'.

There was supposedly a Number or Type 41 Cab, which was the open version of the 11, though I have never seen one. The 42 was the equivalent of the 12, as fitted to say the Chevrolet 2-pounder Portees to S/M 2029, although these were modified as you know when some were rebuilt to 17-pounder tractors. The 43 was the open version of the 13 as fitted to say the 6-pounder C60L tractors, again rebuilt about a year later to G/S trucks with a modified 43 Cab. Then there was the 'open' version of the 13, although this is not a correct description as it was the 13 Cab with a soft canvas top of course. The final open cab as you say was the Type or Number 43S which was a hard, open, wider, cab with little relationship to the 43 it seems unless the windscreen had common parts!! Also, no doors, and no provision for any. So, there were indeed two distinct types, 43 and 43S as you rightly suggested, plus the 13 Cab with the canvas roof as fitted to say the F60H Wreckers for the Indian Army in N Africa.