Bohmann 1878-1930 Joseph Bohmann was a Czechoslovakian stringed instrument maker, born in 1848. He emigrated to America and formed Bohmann’s American Musical Industry in Chicago in 1878. He continued to build many kinds of stringed instruments until around 1930.

http://www.harpguitars.net/history/bohmann/bohmann2.htm

http://en.wikipedia.org/wiki/Contrabass_guitar

Bohmann catalog

1899 http://www.harpguitars.net/history/bohmann/bohmann2.htm

Image 1900 Bohmann Parlor Guitar label Vintage Instruments:Joseph Bohmann guitar label