I inherited a cello bow that is stamped Paul Herrmann. The bow's owner was German (from Luebeck).
A google yields a Paul Herrmann violin bow sold at auction for $504
And another for $705
"Meine ersten Eindrücke vom Bogenbau bekam ich in der Werkstatt meines Großvaters Paul Herrmann, der schon bei seinem Vater Friedrich August Herrmann den Beruf des Bogenmachers erlernte."
The writer, Michael Mönnig, says, "my first impressions of bow making came in the workshop of my grandfather Paul Herrmann, who was trained in bow making by his father Friedrich August Herrmann."