There are three front covers to the sixteen-page booklet.
Page 15 reads "Manufactured by PolyGram in Hanover, West Germany. Printed in West Germany."
In addition, page 16 states, "Prined in West Germany."
The above cover, 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
Rear tray insert, "Printed in West Germany" with barcode.
On the reverse is printed "9 79050-2"
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.
Jewel case info: (first issue) smooth frosted two-dimple, nothing is embossed on the back.
"23" is embossed on one tab and "13" is embossed on the back portion, inside bottom center.
Eight-prong disc tray embossed "Patents pending 21"