Boston, MA Christ Church, Episcopal (Old North) A. David Moore Co., Organbuilders Opus 20, 1991 GREAT Double Diapason 16’ Open Diapason 8’ Stopped Diapason 8’ Viola da Gamba 8’ Octave 4’ Flute 4’ Twelfth 2 2/3’ Fifteenth 2’ Mixture II Sesquialtera Bass II Cornet Treble III Trumpet Bass 8’ Trumpet Treble 8’ Crumhorn 8’ (sic) Swell to Great SWELL (enclosed) Open Diapason 8’ Stopped Diapason 8’ Harmonic Flute 4’ Violine 4’ Fifteenth 2’ Nineteenth 1 1/3’ Sesquialtera II Oboe 8’ PEDAL Open Bass 16’ Stopped Bass 16’ Principal 8’ Octave 4’ Fifteenth 2’ Trombone 16’ Trumpet 8’ Great to Pedal Swell to Pedal Pedal Ventil General Tremulant