Different forms of flue pipes for pipe organ, usually circular pipes are made by wood,the rectangular ones by metal, XIX century engraving Stock Photo - Alamy
Oberlin College researcher helps fight corrosion in historic pipe organs (video) - cleveland.com
Sensors | Free Full-Text | The Dependence of Flue Pipe Airflow Parameters on the Proximity of an Obstacle to the Pipe’s Mouth
Encyclopaedia of Australian Theatre Organs
OrganTutor :: Pipe Categories : Page 1 of 9
Noack Organ Co. - Great division All the flue pipes are in place | Facebook
organs: Sorts of pipes and organ stops
organs: Sorts of pipes and organ stops
Figure 5 from Sound production by organ flue pipes | Semantic Scholar
The parts of a reed (lingual) a) and a flue (labial) b) organ pipe. | Download Scientific Diagram