Thank you Corrado and Fernando.
I am not concerned about the duplicates. I mentioned it in passing as a possible cause for the missing pages as someone who has had professionally to scan a lot of documents myself

However, from my recollection, the duplicates were in Spain.
The following pages are still missing:
7
44
45
46
47
And, again, of course, I am very grateful for your posting this! I think I've bought more books over the past 6 months than arms.