10 pages (5 pages both sides) I have not shown much of the books contents to not give  all the info away.
A copy of the booklet plus another couple of pages of interest showing specs from a sales book and part numbers/ exploded diagram. Free postage in Australia

Check out all my videos on overhauling these pumps by checking out my Youtube channel. Channel name is SHEDASAURUS and most videos start with the words -Piston Pump 1 1/2"