That is meant to be Clay to the power of 10, but I can’t find the superscript key. Anyway, it is the title for the Newton Abbot project. A nod to an old favourite of mine, the film Powers of Ten by Ray and Charles Eames. I can’t remember how long ago I first came across this, but is must be a good 20 years ago. I looked at it again the other day, and it still looked good. The idea is so clear, that the dating in the imagery seems of little importance. Great stuff!