Emil Herrmann was a prominent dealer and restorer of violins in New York City. Nearly all of the most famous instruments passed through his hands at one time or another of his career including literally hundreds of made by Antonio Stradivari, Jakob Steiner

Jakob Steiner

Jakob Steiner was a Swiss mathematician who worked primarily in geometry.-Personal and professional life:...

  and the Amati

Amati

Amati is the name of a family of Italian violin makers, who flourished at Cremona from about 1549 to 1740.-Andrea Amati:Andrea Amati was not the earliest maker of violins whose instruments still survive today...

, and Guarneri

Guarneri

The Guarneri is the family name of a group of distinguished luthiers from Cremona in Italy in the 17th and 18th centuries, whose standing is considered comparable to those of the Amati and Stradivari families...

 families. He taught and employed later influential figures in the violin trade such as Simone Sicconi

Simone Fernando Sacconi

Simone Fernando Sacconi was an expert Italian violin maker and restorer who studied fellow luthier Antonio Stradivari extensively during his lifetime....

 and Hans Weisshaar

Hans Weisshaar

Hans Weisshaar was an important American violin restorer.He worked in Germany, Switzerland and Holland before coming to the United States in 1937, where he was employed with Simone Sacconi at Emil Herrmann in New York.In 1947 he moved with his family to Hollywood, California, where he established...

.