Ah, such memories growing up singing "Schnitzelbank".  It was almost
the first German I learned.  As stated by Conrad Bladey, breweries did
give out sheets with the music and words on it.  Evansville, Indiana,
the German-American town near where I grew up, had three breweries
during the 1950s.  My parent's restaurant served beer from all of them
with place mats of "Schnitzelbank" to place your bottled beer on.

Below is a web site from a Jasper, Indiana, restaurant containing
Schnitzelbank.  The site is suitable for printing with the music to
listen to:  http://www.schnitzelbank.com/poster.htm 

Enjoy,
Ray Bauer
Tahoe City, Calif.

 [ The restaurant's poster displays the same droll woodcut
 [ illustrations as the QRS piano roll and also a poster published
 [ by Mader's German Restaurant of Milwaukee that was later copied
 [ many times by others.  The origin of the poster art is still
 [ unknown.  -- Robbie