Accordion consists of two rounded parts, melody side and bass side connected with the bellows. The sides are wooden and finished with white blue glossy plastic. The fingerboard with button type keyboard with seventy plastic white and black buttons on the polished metal panel is the prolongation of the melody side. The melody side external surface is a grid with rectangular cells, closed with fabric from the inner side. The grid is decorated with narrow white onlay strips. The melody side and the fingerboard rear surface is closed with cardboard panel, glued with synthetical navy blue material.
Screws fix the panel. Illegible goldish decalcomania is on the upper surface. Metal brackets are screwed up to the melody side upper and bottom surfaces, to which leather shoulder straps are attached. Keyboard blue panel with eighty-white buttons is on the bass side front surface. The lateral surface is covered by hand strap. Vertical bar with goldish inscription - the model name “Granesso-50” is between the keyboard and bellows. Round metal feet are fixed on the left board with four round apertures. Sound bars with slotted vocal reeds, soundboards and keyboard valves are inside the melody and bass ends. The bellows folds inner surface is clued with white fabric, ends are clued with black leather and the edges are strengthened with metal brackets. When the instrument lead off, the bellows are totally compressed and two leather straps with buttons hold both sides together. Paper sticker with the inscription in Swedish is on the bass side rear surface.

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