“Grotrian Steinweg” Factory.
Germany, around 1910

“Clutsam – Klaviatur / D.R.P. 211650 / Patente in allen Kulturstaaten / Licenz № 113” — an inscription on the metal label nailed to the left of the key А of the double contra octave; “Clutsam Klaviatur / Grotrian Steinweg Mechanik” — a brass label nailed to the outside of the lid.

1400×790×305
Wood, metal, bone, cloth, glass

Around 1910, arrived from an unknown source
Stock number: 17249/162

The instrument is without strings. The carefully adjusted keyboard, the hammer and the damper mechanisms are mounted in the oak square case under glass. In relation to the performer, the keys are arranged not in a straight line, as in a traditional instrument, but in a concave line encircling the performer.