After visiting the fantastic drawing exhibition at the British Museum I was particularly struck by the effect of lighting on some of the double sided glass frame pieces.  I noticed that as people moved about the gallery obscuring the light on the backs of the frames it enabled the viewer to see either one or both sides of the image simultaneously.  I thought that would be a great way to display the postcards that Royal Mail had managed to get back home safely.  –  This image shows the housing which contains one of the postcards, it is fitted with a pull cable light attached to a washer …. kind of a miniature lightbox