The larger organ is situated adjacent to the carousel. Organ builder Ed Schmidt, of McFarland, Kansas, says the organ was originally built to play 90-key Ruth book music.  When Harold Perry purchased the organ, in 1956 or 1957, he had the B.A.B. company convert it to play B.A.B. music rolls.  Russ Doering says they are
87-key B.A.B. rolls.

On page 230 of his book, Waldkircher Dreh- und Jahrmarkt-Orgeln, Herbert Jüttemann gives a somewhat circuitous description of a Ruth Model 37 90-keyless organ, announced in 1901, based on the instrumentation of the Model 24 (cylinder) organ but with added notes in each division.  The pipe ranks included stopped flutes in Bass and Accompaniment, Violin, Spitzflute, Trumpet, Bombardon and Mixtur.  The organ probably was furnished originally with a cabinet-style facade and later with a carved ornamental facade.
 

Bild 11.8 (Seite 225).  Concert-Orgel mit Faltkarton und erweiterter Schrank-fassade der Firma Ruth. Nach einem Katalog-Einzelblatt der Firma Ruth gehört die Fassade zu Modell 35 und 36.  Die Fassade ist wohl nur ein Stilbeispiel, mit dem auch das Modell 14 ausgeführt sein konnte. Concert-Organ by the Ruth Company with book music and expanded cabinet facade.  According to a single-sheet catalog of the Ruth Co., the facade could be furnished with Model 35 and 36 organs.  The facade is probably of only one style pattern, with which the Model 14 also could be furnished.

Tilden Regional Park, operated by East Bay Regional Park District, is located in the hills east of El Cerrito and north of Berkeley, California.  It is roughly 1 mile wide and 4 miles long (1.6 x 6.4 km) and includes many environmental, historical and recreation activities.  Public transportation to the park is provided by Alameda County (AC) Transit (route #67) and Bay Area Rapid Transit (BART).