Stanesby and his father, along with Peter Bressan, were the finest makers of recorders and flutes in England at this period. This alto recorder in F' is stamped "STANESBY/IUNIOR/F," and has a flutelike foot joint, perhaps in response to the growing popularity of the transverse flute by the 1720s.
4900 Historical Woodwind Instruments: An Inventory of 200 Makers in International Collections. Phillip T. Young. London, 1993, pg. 220.
A Checklist of European & American Flageolets, Recorders, & Tabor Pipes. 2. The Metropolitan Museum of Art. New York, 1989, pg. 15.