[ Ref. Andrew Lardieri 180322 MMDigest ]

The organ is more than likely the Wurlitzer Style 165 band organ at
Lincoln Park (later at Griffith Park) in Los Angeles.  The commercial
was probably made under contract by Warner Bros., which is just up the
road from Lincoln Park.  Ross Davis is known to have had that organ
recorded and a LP was produced back in the 1960s.

Bruce R. Pier