| 1929 MAGNETIC ORGAN ACTION Movement Initiating |
| 1929 BRUNO FRIEDEL Mouth Organ Patent Print Art |
| 1929 GRIFFIN Mold Casting Organ Pipe Toes Art |
| 1929 HAMMOND JR Organ Pipe Patent Print Art |
| 1929 JENNIE A FLAHERTY Pipe Organ Action Patent |
| 1929 GOTTFRIED Organ Pipe Voice Adjuster Patent |
| 1929 FLAHERTY Pipe Organ Action Patent Print Art |
| 1929 HAMMOND JR Organ Patent Print Art |
| 1929 HAMMOND JR Harmonic Organ Patent Print Art |
| 1929 A GOTTFRIED CO Mold Casting Organ Pipe Toes |
| 1929 GARMAN Electric System Pipe Organ Coupler Control |
| 1929 MCCOLLUM MINNIE Organ Pipe Foot Patent |
| 1929 AEOLIAN COMPANY Organ Patent Print Art |
| 1929 EDMOND VERLINDEN Organ Valve Patent Print |
| 1929 VOTEY EDWIN Organ AEOLIAN COMPANY Patent |
| 1929 EDWARD BAWTREE Organ Patent Print Art |
| 1929 ROBERT MORTON ORGAN CO Chest Action Pipe Organs |
| 1929 ALFRED MOORHOUSE Pipe Organ Patent Print |
| 1929 OTTO FAHRNI Mouth Organ Patent Print Art |
| 1929 LOSH GEORGE Organ Mechanism Patent Print |
| Vintage 1929 "When the Organ Played at Twilight" |