Accession number
PML 88429
Creator
Wheatstone, Charles, Sir, 1802-1875.
Published
[London] : C. Wheatstone, Jany. 1st. 1824.
Credit line
Gift of Julia P. Wightman, 1991.
Notes
Diagram, engraved on two pieces of cardboard; one, a rotating disc is mounted on the other, so that users can rotate it to different settings. The device indicates the key signatures for all major and minor scales, as well as every degree for each scale. Lifting a flap made of red ribbon reveals sharps and flats seen through a small die-cut window.
Description
1 diagram ; 21 cm
Provenance
From the library of Julia P. Wightman.
Binding
In publisher's green cloth envelope. In modern preservation folder.
Classification
Catalog link
Department