[ Ref MMD 000928, "Ervista Bona of B.A.B. Organ Company" ]

Misspelling 'Bona' as 'Borna' might be a Freudian slip.  Borna is
a German city significant in the history of music.  The famous pipe
organ builder Urban Kreutzbach was located there.

One of his employees, Theodor Mannborg, broke away and established
a reed organ factory there in 1889, along with Olof Lindholm and Magnus
Hofberg.  The latter two each subsequently established reed organ
factories, Lindholm in Borna and Hofberg in nearby Leipzig.  All the
factory buildings still exist, and the Lindholm company is still in
operation manufacturing harpsichords.

Fritz Gellerman