On the other hand , nearly thirty instruments not known to Hellwig have come up , among them the fragment of a baryton , a cello , more viols , guitars , lutes .
The bows have shown to be non-authentic .
Nearly thirty instruments not known to Hellwig have come up , among them the fragment of a baryton , a cello , more viols , guitars , lutes .
The bows have shown to be non-authentic .