As your reading this, look up to the very top of the page, scroll right up as far as your cursor will go, click on the ...Vintage British Diecasts Website... and look around, there will be some very useful information for you to apply to the models you have shown us.
The red Rolls-Royce, model number 24, is actually sitting on the wrong box, it is sitting on a later 'Superfast' wheeled model box, when it should have an earlier 'Regular' wheeled model box, with the model's artwork facing the other way, meaning the box for your model will have the car on the box going from 'Right' to 'Left',