There are 2 I.F. Roth bassoons in the Hichwa-Rachor database. Very little is known of this maker; Dullat says that he was a Drechsler Holzblasinstrumentenmacher, Germany, c.1700.
I.F. Roth Literature
Dullat, Günter. Verzeichnis der Holz- und Metallblasinstrumentenmacher auf Deutschsprachigem Gebiet von 1500 bis Mitte des 20. Jahrhunderts, Scheider, 2010.
Waterhouse, William. The New Langwill Index. London: Tony Bingham, 1993.
Young, Phillip. 4900 Historical Woodwind Instruments. Tony Bingham, 1993.
Young, Phillip. Die Holzblasinstrumente im Oberösterreichischen Landesmuseum, Oberösterreichischen Landesmuseum. 1994, p. 192.
Roth, I.F., 3 key bassoon; RothIF1-O-LinzMu129
RothIF1-O-LinzMu129 General Information
RothIF1-O-LinzMu129 Short Format Data Spreadsheet
Roth, I.F., 3 key bassoon; RothIF2-O-Leizpzig1372
RothIF2-O-Leipzig1372 General Information