There are 3 Ignaz Huittl bassoons in the Hichwa-Rachor database. He flourished in Graslitz from c.1760 to c.1800. His family name is spelled Huttl by both Dullat and Waterhouse. Very little is known about him and his work except he is known to have made both clarinets and bassoons.
Ignaz Huittl Literature
Dullat, Günter. Verzeichnis der Holz- und Metallblasinstrumentenmacher auf Deutschsprachigem Gebiet von 1500 bis Mitte des 20. Jahrhunderts. Scheider, 2010.
Jansen, Will. The Bassoon: Its History, Construction, Makers, Players and Music. Frits Knuf, 1978, Vol. I, p. 405.
Rice, Albert. Four Centuries of Musical Instruments. 2015, p. 180.
Waterhouse, William. The New Langwill Index. London: Tony Bingham, 1993.
Young, Phillip. 4900 Historical Woodwind Instruments. Tony Bingham, 1993.