Hi Mick, I've just discovered my late father's Swissair Navigator, it has it's original leather case, but no instructions, which is very unusual for my dad, he used to have a whole drawer unit of instructions and guarantees for every single thing he ever bought! lol. Anyway, I've been searching everywhere for some info about it and came across your post, I was wondering if it would be possible to do me a copy as well? Not sure if you can send it through the forum or if you need my email?
My father used to fly in the 1950s from Bradford Airport in Yorkshire, he was also fascinated with bus timetables and services- he later started a small coach company, evidently if he got lost when flying, he would look for the nearest bus, and would know immediately from the colour, which service it was, where it operated, and so where he was!
Anyway, all the best, Matthew.