Check it out! The intrepid Dean Carnegie of Carnegie: Magic Detective alerts me that he has found the missing "Margie Box"...sorta.
This is actually a 2007 sculpture by Australian artist TV Moore and was part of the exhibition, TV Moore - Fantasists in the Age of Decadence. He called his creation, "The Margery's Box / N.A.N.".
This image comes from the roslyn oxley9 gallery where you can see more of TV Moore's artwork.
Thank you, Dean. If only...