Boobies!

There was a generation who were first to the pocket calculator... hurray, the slide rule can go away and the log books are not required on the voyage... Ah no, said the teachers... it was some years after I left school that calculators were allowed into the exam hall. I suppose now a small microcomputer - perhaps wrist mounted - replaces the inky shirt cuff...

Anyhow, the first thing we all did was discover what words could be written on the screen and of course the favourite, and worthy of a decent snigger for at least a few weeks, was five million, three hundred and eighteen thousand, and eight. Because when inverted it became BOOBIES

Oh come on... you know you did it.

Today is both palindromic and ambigramic. It reads the same forwards, backwards and upside down. I'm sure loads of you have blipped this already... but guess what the time was when I took the shot?