Wonderful varied collection of 37 issues of "The Organ Portfolio," published by Lorenz.  Ranging from the oldest (August 1966)  to the newest (Nov/Dec 2000).   Intermediate level. Manuals and Pedals.

1966: August, December.

1977:April, October, December

1978: June, August, October, December

1991: June, August, October, December 

1992: Complete 6 issues

1995: Complete 6 issues

1996: Complete 6 issues

2000: Complete 6 issues

Many of the front covers with contents are shown in the photographs.