Accordion

German model, button accordion with wooden handles and box-shaped wooden case painted in black. Single straight row of ten button treble keys made of plastic with mother-of-pearl tips and exposed metal (tin?) pallets. Four stops on treble end-frame with brass knobs. Two metal button bass keys on growlbox, plus an air button on the back. Eleven-fold cardboard bellows divided into three sets by two frames, covered with dark green paper with white leather gussets and reinforced steel corners. Metal (tin?) corners on bellow frames, and plated steel hook-latch for bellows. Cloth (black canvas) and felt treble handle, and green military strap handle around growlbox.