Examples:
Osiris contains nineteen examples of Piffaro. Three appear to be independent single-rank stops of 8' or 4' pitch, one of which is documented as an Italian Principal. Three are 8' celestes. Ten are compound stops composed of two to seven octave-sounding ranks, both flutes and strings, in combinations including 8+8, 8+4, 8+2, 4+4, 4+2, and 2+1, one of which is known to be combined from other independent stops. One is a four-rank mixture at 2-2/3'. Two are compound stops of three to six ranks of unknown composition.
Bifara 8'+4', Third Manual; St. Peter's Church, St. Petersburg, Russia; Walcker of Ludwisburg.
Bifara 8', Manual, Evangelienorgel; Passau Cathedral, Bavaria, Germany; Steinmeyer 1924.
Bifra 8+4, Pedal; Cathedral, Magdeburg, Germany; Schuke 1969.
Bifra 8', Manual III; Morelia Cathedral, Michoacan, Mexico; Walcker 1905. No details are known, but the same division includes a Gedeckt 8' and a Flauto Dolce 4'.
Piffara 8', Positiv; Kappele, Wurzburg, Germany; Vleugels 1991. Details are sketchy, but this appears to be an independent rank of tin.
Piffaro (celeste) 8', Manual IV; Stadthalle, Goerlitz, Germany; Sauer 1910.
Piffaro II-III, Bombarde; Broadway Baptist Church, Fort Worth, Texas, USA; Casavant 1996. 70% tin, slotted. Composition: CC: 4', 2'; TC: 8', 4'; MC: 16'.
Basilica, Weingarten, Wuerttemberg, Germany; Gabler 1737 (restored Kuhn 1987): Piffaro V-VII 8', Hauptwerk (8' + 4' flutes & strings) Piffaro 4', Echowerk (CC: 4 & 4, c1: 8 open & 8 stopped) Piffaro IV-VI 4', Brustpositiv (unisons and octaves)
Piffaro IV 2-2/3', Pedal (Laurentius-Organ); Lorenzkirche, Nuernberg, Germany; Steinmeyer 1937.
Bifra 8', Oberwerk; Cathedral, Riga, Latvia; Walcker 1883 (restored Flentrop 1983). This example combines an 8' Gedackt with a 4' Dolce, both of which are available independently in the same division.
Cathedral, Riga, Latvia; Walcker 1883 (restored Flentrop 1983). Bifra 8', Oberwerk (Gedackt 8' + Dolce 4') Piffaro 8', Schwellwerk (Bourdon Doux 8' + Salicet 2') Both of these stops combine ranks that are also available independently.