Thank you very much for your vote, Bob. This reminds me to get off my backside and create that little bit of recognition for our loyal "solvers" too.

You are very welcome Edward, it's an excellent book and armchair treasure hunt and worthy of my vote. The role of honour would be very appreciated. Regards Bob.

As the only solvers (to date) are in the UK, it will indeed be a role of honour. I have a small token in mind, one that has been flipping through my design books for over a year...