A seven-keyed double flageolet by William Card stamped Card & Liester/98/Quadrant/Regent St/London; with brass keys, ivory buttons and mounts, length 18¾in. (47.6cm)

細節
A seven-keyed double flageolet by William Card stamped Card & Liester/98/Quadrant/Regent St/London; with brass keys, ivory buttons and mounts, length 18¾in. (47.6cm)