And I've done the posterity thing. Quite salutary when a bit of Googling proves that some memories nursed over many years have slipped timescales and so on.
Quite. I was convinced of two particular features almost 50 years ago. Checking my logbook and a calendar proved both were not quite correct
Thanks for that.
Now for posterity, what would someone make of All Aids? It did of course exclude Gee but I see from my log book that it included a Sun line by day and pre-comp astro by night