Do these 60s kitchen drawers have narrower boxes than the faces?

Many modern kitchen drawers will have drawer faces that are slightly larger than the drawer boxes so that the faces appear flush with each other, while the drawer boxes are narrow enough for a divider all in between them, to which they are often attached with slides.

I have seen a lot of pictures of older kitchen drawers with visible dividers between the drawers. Here are some examples:

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I am trying to figure out if these drawers also have narrower boxes than faces, which would make them quite narrow indeed, or are the boxes the same size as the faces? Are these things on sliders, or are these just boxes in boxes?