From the "Specification": "The Grace Church organ is equipped with a solid state switching system with eight levels of memory for each combination piston and four levels for the crescendo pedal and tutti controls. Eight general pistons control all stops of the organ and six division pistons independently control the stops of each division. Numerous other controls, including switches that allow the manual division pistons to activate the pedal pistons, and coupler and combination reversibles, allow flexibility in handling such a large instrument. The Rev. A. R. Strauss of Ithaca, New York completed the renovation of the magnificent Grace Episcopal Church organ in 1991, It contains 5 divisions, 48 independent stops, 67 ranks, and 4007 pipes." In point of fact, the Specification identifies 3886 pipes in the stop list. The claim of 4007 pipes does not match the listed stops.