First catalog number on front cover, second on labels.
P. 1973
Made in Germany
On front cover: Knock! Knock!! Who´s there ?
On spine: Knock Knock . Who´s There
On center label is no title.
First catalog number on front cover, second on labels.
P. 1973
Made in Germany
On front cover: Knock! Knock!! Who´s there ?
On spine: Knock Knock . Who´s There
On center label is no title.
