Listed only by Irwin, who says: A Flute of open construction, at 8' on the manuals, yielding an unusually powerful and heavy tone from either metal or wood pipes. It is a rare stop-name, and indicates a louder form of the Tibia Plena. It may be used in contrast with a Tibia Plena of less volume. Rex, of course, means �king�. See Tibia.
Tibia Rex 8', Solo; Convention Hall, Atlantic City, New Jersey, USA; Midmer-Losh 1929-32.