I have recently started an OSI 20er Strasse Orgel Owners Group on my
website.  We will be sharing information on these interesting little
machines that were made for a brief time by Organ Supply Industries
(OSI) in Erie, Pennsylvania.

We now have a total of three members and a little web presence at
http://www.wallace-venable.name/mechanical-music/OSI_Strasse_Orgel

Wallace Venable