This device assists blind music teachers to teach music notation to the sighted, by using a braille dial. Created by Percival Mayhew in the 1920-1930's, it consists of a wooden frame with a window, behind which is a sliding list of 63 staff notations and 17 sol-fa tones. To use, the teacher sits behind the indicator (to align the Braille scale of signs) whilst the student sits in front of the window and views the printed version. Black vinyl carry case has been created for transporting device.
Wooden board with window for visual display and two double-sided paper cards and black vinyl carry case
Inscriptions & markings
'The Mayhew Music Indicator' on front.