One of 'The Practical Motorist, Care & Safety Check Charts', my favourite movable chart. It was presumably a free gift with The Practical Motorist, I'm guessing in the late 50's or early 60's.
It's double sided and gives helpful 'remedies' for minor car 'symptoms'; lining up the arrow on the symptom, gives you the suggested 'remedy' for steering, light or braking issues. For example, the front (above left) shows 'wheel Tramp' as the symptom and 'Balance wheels; renew faulty hydraulic dampers; equalise tyre pressures' as the remedy. There is also a cool stopping distance chart/graphic on the reverse.#21 - The Practical Motorist, Care & Safety Charts