All known examples are given below.
Bois Celeste 8', Choir; Cleveland Public Auditorium, Cleveland, Ohio, USA; Skinner 1921. This stop appears to be intended for use with the 8' Concert Flute.
Bois Celeste 8', Orchestral; Woolsey Hall, Yale University, New Haven, Connecticut, USA; Skinner 1928. This stop also draws the 8' Concert Flute.
Bois Celeste II 8', Echo; First Presbyterian Church, Germantown, Pennsylvania, USA; Austin 1917, 1963. May be a digital voice added later.
Bois Celeste II 8', Nave Solo; St. Paul's Episcopal Church, Chestnut Hill, Pennsylvania, USA; builder unknown, 1977.
Bois Celeste 8', Swell; West End United Methodist Church, Nashville, Tennessee, USA. Added in the late 1990's by Luley & Assoc.; harmonic open wood, moderately loud; intended for use with 8' Concert Flute.
Bois Celeste 8', Choir/Positiv; Grace Church, Haddonfield, New Jersey, USA; Austin 1980's. May be a digital voice added later.