I too got an Atlas Coeli in around 1977. My father had to arrange some kind of bank transfer to order it from the US. I owned it into the 90’s, but then gave it to someone else. I never had the negatives. I recall there were desk and field editions of the atlas available. I still have the catalogue, but I’m not sure I ever used it in earnest!
Let us know what you turn up, Tony.
Jeremy