Altered with addition of a platform and shell and marketed as Opus 1508.
Identified through information adapted from E. M. Skinner/Aeolian-Skinner Opus List, by Sand Lawn and Allen Kinzey (Organ Historical Society, 1997), and included here through the kind permission of Sand Lawn:
This was an experimental organ, #K-392; later sold back to AEolian-Skinner. [See #1508]