There are three front covers to the booklet. This, I assume, is the first to be issued.
There is no title at the top.
The second issued front cover.
Exactly the same as the first cover, with a title sticker added at the top.
The third issed front cover.
This cover has the title printed at the top. The cover is also cropped
Back cover, "Printed in West Germany" with UPC.
No back cover variations have been found.
Notes: This disc seems to be easier to find than most Nonesuch target discs.
Still, it is not exactly common.