Thank you very much gentlemen,
For all your views and opinions. I always learn so much from such discussions. Who knows, one day such details will start to stick in my colander of a brain.
Out of interest, this is number 77 in my modest militia button collection. It's a slow haul but perhaps 2018 will be the year I hit a century - I can only hope.
Much thanks indeed.
Cheerio,
Roy