Hilbus & Howiston, 1814 Smithsonian Institution Division of Culture and Arts Washington, DC Manual: FFF-f3, 61 notes; Swell section c1-f3, 30 notes UNENCLOSED Open Diapason stopped wood bass, then open metal and facade Stopped Diapason Treble c1-f3, stopped wood Stopped Diapason Bass FFF-b0, stopped wood Dulciana c1-f3, open metal Principal Treble c1-f3, open metal Principal Bass FFF-b0, open wood basses and open metal Flute stopped wood Twelfth open metal Fifteenth open metal ENCLOSED SECTION (guillotine swell by hitchdown pedal) Open Diapason Swell open metal [c1 is chimney flute) Principal Swell open metal Order of drawknobs, left and right jambs Swell 4' 15th Swell 8' 12th Flute 4' Princ. Treble St. Diap. Bass Prin. Bass Open Diap. 8' St. Diap. Treble Dummy for symmetry Dulciana Swell foot lever Machine-stop foot lever