Danny - you say
"by an old duffer half-blind anyway !)"
No way to describe yerself, a veteran of 95 summers at all at all!
I will, if I'm spared, 'till thursday, make the big 70, and I already have bifocals (even for my sunglasses) and a special pair of specs for spending too much time looking at this addictive computer thingie.
A couple of quotes are running in the back of my mind at this time;
"And at my back I always hear, time's winged chariot hurrying near"
"The days of our years are threescore and ten"
Kind of worrying for me - but it's great to see someone like you beating the odds.
Continue to do so Danny!
Ian BB