NEED HELP PLEASE, WHAT DOES A 3647S BOX LOOK LIKE?

Hi, I am looking for an original box to store a mid sixties 3647S and have seen different styles and colours of box claiming to be the correct type including a long thin red hard case and coffin box type cardboard boxes similar to Autavias in both blue and red. I would really appreciate some help to know what I trying to find looks like so I can hopefully find the correct one for sale. Can anyone either describe it or better still post a pic.? Did the type of box change over the years or did the country of sale affect the box used?
Thanks