31 Bandonika Wolf & Co ca 1935. To kor, 8’ + 8’, tre rader, bisonor, 12 basser. Trapezoide trekkspilltunger (stål) klinket på separate aluminiumsplater festet med voks. 24 x 26 x 32 cm

31 Bandonika Wolf & Co ca 1935. Dual voice, 8’ + 8’, three rows, bisonor, 12 basses. Trapezoid accordion reeds (steel) riveted to separate aluminium reed plates fixed with wax. 24 x 26 x 32 cm