This might be a tough one.
It's the only usage in a small German book of that title (which means what, btw?) printed in Stuttgart in 1952 (the copyright date). I've included the subtitle in Palatino to remind us how effete the digital version is - just look at the "s" and "t"... Speaking of Zapf (and maybe this is a clue) some of his captivating calligraphy can be seen on the cover of the book: