CHUBB'S LOCKS, 'ZEE-PR.OOP 1, SAFES,. CASH-BOXES,- 4c
... Patent gives to these Instruments are I. All the Tones Semitones produced • by the Patent Lever are quite as perfect as the Natural Notes on the Instrument. 2. The intervals in the Dr/trot:lc and CHROMATIC Scales are perfect, the compass greater, and the most ...