The Thomas Californian Organ Owner’s Manual 1972 Models 261-262 is a comprehensive guide specifically designed for owners of Thomas organs from the year 1972. This manual provides detailed instructions and information on how to properly maintain and operate these specific organ models, ensuring optimal performance and longevity. With 61 keys and focusing on the unique features of these 1972 models, this manual is a valuable resource for organ enthusiasts and musicians looking to enhance their playing experience.