Yep, the index plate it is a mile out. I should have elaborated..... They 'corrected' the pointer in relation to the index mark in relation to the range dial in two ways. By slightly skewing the index plate OR by moving the triangular index mark left or right '..... a bit'
It's true about engineers..... No matter what you do or where you go, it just gets into your blood a bit..... I have restored/rebuilt an old wartime Meddings pillar drill. Just sooooo versatile compared with some modern cra......, er....., stuff. But will you be making new multi start lead screws as well!!!!!!!