Sorry, I forgot that doesn't translate well outside the UK. It is a literal box for putting your bread in to keep it fresh and is a similar shape to the original C64. So the original C64 is nicked-named the "bread-bin" in the UK.
I think it might be a generational lapse, rather than a geographic quirk, as bread boxes don't seem common in younger households.
Still puzzled about the hole in the bottom - I wonder if it was being used in a business for some special purpose?