I've now added a picture of the back cover and the thin printed cardboard insert that came with the album. The blurb on the insert starts off with: "The Beatles Get Back". "Latest report from Apple records suggests a late August release for the Beatles next album...". The labels are all black with no printing and no record company name anywhere, outside of the Apple/Electrola logo in upper right corner of the front cover. Obviously not a real Apple/Electrola release.
My copy is a German bootleg LP that uses a reproduction of the original artwork made up for the aborted Apple LP release. The sound quality is excellent, comparable to that of an officially released album. I've added an image of the front cover.