The Fisk-Nanney organ at Stanford Memorial Chapel is an interesting instrument, with both fifth-comma and well-tempered tunings (in a pipe organ!). The “Brustpositive and the Brustpedalia are fixed in meantone and offer two sub-semitones, or split sharps, per octave, D sharp/E flat and G sharp/A flat”
https://cbfisk.com/opus/opus-85/
https://orsl.stanford.edu/memorial-church-organs
(My Mom, a student of Herb Nanney, loved playing this organ.)