| DATE | LOCATION | CITATION | TEXT INDEX ENTRY | 1768.11.15 | Philadelphia | CITATION | Zither strings, for sale by Memminger, Theodorus | 1768.11.22 | Philadelphia | CITATION | Zither strings, for sale by Memminger, Theodorus | 1768.11.29 | Philadelphia | CITATION | Zither strings, for sale by Memminger, Theodorus | 1773.04.13 | Philadelphia | CITATION | Zither, taught by Naeff, Joh Melchior | 1773.04.27 | Philadelphia | CITATION | Zither, taught by Naeff, Joh Melchior |