TRANSPOSITOR
(removable pianoforte
keyboard for transposition)
72-keyed (keyboard extent is Е of
the contra octave — е of the four-line
octave)
“Pleyel, Wolff and Company” Factory, No. 1041.
France, Paris, 1880s
“PLEYEL WOLFF & Cie EN FRANCE & À L’ÉTRANGER BREVETS” — a stamp by black dye on a round bone label embedded in the front side bar;
“1041” — embossed with a punch on the back side of the front side bar.
1240×180×100
Wood, metal, bone, cloth
Around 1902, arrived from an unknown source
Stock number: 23555
See: No. 118
