UK historical researcher Isaac Koi posted on ATS:
"I am now pleased to be able to share a further collection of material – about 30 booklets of documents produced by Quest Publications (some of which are over 100 pages long). ...thanks to Russel Callaghan and others in the Birdsall family, the under-appreciated “Archives For the Unexplained” ("AFU") in Sweden has now scanned nearly 30 of the collections of documents published by Quest Publications."
Of particular interest, is 101-Cash_Landrum_File-Civil_Action, a collection of legal documents relating to the Cash-Landrum UFO encounter. Below is a link to the ATS article:
Direct link to the booklet:
The Cash-Landrum File: Civil Action No. H84 348
I do not believe a complete collection of legal files exists, but between this, the CUFON collection and John Schuessler's book, almost everything has been disclosed.
Many thanks to Isaac Koi for preserving this, and many other UFO historical records.