細節
A FINE ENGLISH VIOLA by John Betts labelled John Betts No 2 North Piazza/Royal Exchange London Fecit and branded below the back button and by the end-pin; the one-piece back of handsome medium curl, the ribs and scroll narrower, the table of medium grain, the varnish of a golden brown colour, the length of back 15 1/16in. (38.2cm.)