Méthode abrégée pour accorder le clavecin et le forte-piano.

8vo: 13 pp.; 2 pl. (sm. blank part of upper corner of first 3 lvs torn off).

Sewn, original wrappers (water stain on verso front cover, sm. chip of upper corner of upper cover torn off).

Instructional textbook by A.-F.-N. Blanchet (1763-1818). The Blanchet family was an extended family of French harpsichord makers from the late-17th century to the mid-19th century, by which time they had become piano makers (Wikipedia). Ill. with 2 fold. engr. pl. by Souhart.
Ref. Fétis, Biographie universelle des musiciens, I:435.