Lasocki, Not Just the Alto: Sizes and Types of Recorder in the Baroque and Classical Periods (pdf)
Woodnote Wood Grain Alto Recorder-Baroque fingering/3 pieces construction
MODERN Alto Recorder by Mollenhauer | Lazar's Early Music
Yamaha YRA-28B Plastic Alto Recorder – Volkwein's Music
Transposed Alto Recorder Package With CD - Macie Publishing Company
Küng 4409 Marsyas Alto Recorder – Thomann United States
YAMAHA YRA-28B ALTO RECORDER WITH BAROQUE FINGERING Key of F
YRA-28B Yamaha Alto Recorder – AZG Musical Inc.
20 Series ABS Resin Alto Recorder by Yamaha | Lazar's Early Music
The extremely chaotic history of the ALTO RECORDER! | Team Recorder - YouTube
Johann Benedikt Gahn | Alto Recorder in F | German | The Metropolitan Museum of Art
Amazon.com: Music Recorder Instrument,Beginner Adult German Alto Recorder, 8-hole Wooden Professional Playing Flute Instrument, Storage Bag + Cleaning Stick + Lanyard : Musical Instruments
Alto recorder - Wikipedia
Basic Recorder Technique, Vol. 1 (alto)
Baroque alto recorder · Grinnell College Musical Instrument Collection · Grinnell College Libraries