MOHR, Philip, Hamburg, 17th century. Viol-maker.

MOLDONNER, Fussen, Bavaria, 18th century.

NIGGEL, Simpertus, Fussen, 17—. Flat model, good workmanship. Branded inside with initials S. N.

OHBERG, Johann, Stockholm, 1773. Workmanship of average merit. Varnish mostly of yellow colour.

OTT, Johann, Nuremberg, about 1463. Lute-maker.

OTTO, Jacob August, born at Gotha, 1762, died 1830. Violin-maker to the Court of Weimar. Received instructions from Franz Anton Ernest. He published a work in 1817 entitled, "Ueber den Bau und die Erhaltung der Geige und aller Bogeninstrumente," and another work with more information in 1828, the first English edition of which was published in 1848.

OTTO, Georg August, son of Jacob August, born 1807, died 1859. Succeeded to the business of his father at Jena.

OTTO, Christian, Halle, second son of Jacob August. Born 1813, died 1876.

OTTO, Heinrich, Berlin, third son of Jacob August. Born 1815, died 1858.