Gorgeous back of Stradivarius cello 1700 Cristiani, Stauffer. One of rare instruments that it was made by the very intense ground and the intense red color varnish #violin #viola #cello #violinrestoration #violinmaking #luthier #varnish #liuteria #liutaio #restauro #バイオリン #ビオラ #チェロ #弦楽器 #ヴァイオリン #クレモナ #修復 #artviolins