Thanks to the MadMen Yourself site, this is what I might have looked like teaching on one of RBI’s training courses back in the 1960s…

 [![MadMen Adam](https://i0.wp.com/www.onemanandhisblog.com/content/images/2009/07/madmen_widescreen-thumb-520x325-1371.jpg?resize=520%2C325)](http://www.onemanandhisblog.com/assets_c/2009/07/madmen_widescreen-1371.html)
[Blame: [Alison Battisby](http://www.alisonbattisby.co.uk/), via [Twitter](http://twitter.com/Alisonbattisby/status/2890543249)]