The headquarters of textile producer Helly Hansen were located in Moss until 2009 .
Moss is mentioned since the Renaissance and was the site of the signing of the Convention of Moss in 1814 , which solidified the union with Sweden .
The headquarters of textile producer Helly Hansen were located in Convention of Moss until 2009 .
Moss is mentioned since the Renaissance and was the site of the signing of the Convention of Moss in 1814 , which solidified the union with Sweden .