English: view of the soundhole and label of a Ukulele made by Louis Viohl & Sons in Flushing, Queens, New York sometime in the 1920's. Albert Louis Viohl emigrated to U.S. in the 1860's and started the Empire workshop in 1883 where he made various stringed musical instruments including Guitars and Mandolins. Both of his sons joined the family business and in 1902 Louis Jnr took over running it, (August was the other son) and added Ukuleles to the catalogue in the late teens / early twenties