Updated by Hunter Henderson, who has heard or played the organ.
The wind chest on this organ is a hybrid version of the Austin Universal Wind Chest. The chests are enclosed with the same type of wind pressure with full electrical action inside of the chest. None of the pipes in the organ are under expression but all of the digital parts of the organ are under expression. Most of this organ is actually digital.
Identified through online information from Kristina Powers. -- Rebuild of existing relocated Austin organ. Further research in a notice published in the Diapason shows that the organ has 15 ranks of original Austin pipes, with 3 added on.