There are 3 Astor bassoons in the Hichwa-Rachor database. One bassoon (Astor1-O-vanRijn) is attributed to George Astor, and two by Astor & Company. The workshop flourished in London c.1778-c.1831.
Astor Literature
Jansen, Will. The Bassoon: Its History, Construction, Makers, Players and Music. Frits Knuf, 1978 Vol. 1, p. 332.
Lasocki, David. “New Light on Eighteenth-Century English Woodwind Makers from Newspaper Advertisements”. The Galpin Society Journal, Vol. 63, May 2010, pp. 112-124.
Waterhouse, William. The New Langwill Index. London: Tony Bingham, 1993.
Young, Phillip. 4900 Historical Woodwind Instruments. Tony Bingham, 1993.
Astor, 6 key bassoon; Astor1-O-vanRijn
Astor1-O-vanRijn General Information
Astor1-O-vanRijn Data Spreadsheet
Astor, 8 key bassoon; Astor2-O-Sigal
Astor2-O-Sigal General Information
Astor2-O-Sigal Data Spreadsheet
Astor, 8 key bassoon; Astor3-O-Edinburgh
Astor3-O-Edinburgh General Information