Positiv chests did not extend full compass -- 56 notes only. Keyboard 61 notes.
Walter Holtkamp Sr.'s last design, unfinished on the drawing board when he died in 1962. Instrument builder and installed under direstion of Walter Holtkamp, Jr. Fanfare Trumpet (en chamade) added in 1980 by Holtkamp Organ Co.
Swell Trumpet and 4' Flute added in 1990 by Howard Best.