These notes where written by Lt D Wallace of the 109th LAA Royal Artillery Regt that I have in a collection and would put the modern Haynes manuals to shame, they were written at the R.A.M.T.S. in September 1943, I am thinking the previous stands for Royal Artillery Motor Transport School? I think you will agree the details of the drawing are fantastic! For obvious reasons this is only a very small selection of the images that are in the book, if you would like to see more I could probably copy the book and send it to you in the post (it would take to to download/upload).
Depends WHICH Haynes!!!! Seriously, though - don't forget this was an era when the "skill" of drawing was taught in schools. Even thirty years ago we still had to draw the setup of chemistry experiments etc.