细节
An eighty-one button baritone duet system concertina
by Wheatstone No. 27628, with fretted amboyna endplates, brass buttons, 10 5/8in.(27cm) diameter, in a case.
by Wheatstone No. 27628, with fretted amboyna endplates, brass buttons, 10 5/8in.(27cm) diameter, in a case.