German roundback double bass

German five string double bass (under restoration)

German five string double bass (under restoration)

Charles Quenoil 1878-1952, four string double bass (under restoration)

Charles Quenoil 1878-1952, four string double bass (under restoration)

Ferdinand Seitz double bass, 1851 (under restoration)

Charles Quenoil 1878-1952 five string orchestra double bass (under restoration)