"Early table telephones"
(Click at the pictures to see a real version of the phone).

Picture 431, click for a real version, Museum für Post und Telekommunikation
 1892

The first type of a table telephon, ca. 1892
- case of walnut
- Handset with tin telephone
   with ringmagnet and carbon-
   cylinder microphone
- induction coil
- battery calling
- DC ringer
- Lightning arrester
- local battery working with DC-
  busy test
1893

Table telephone, ca. 1893
- case of walnut
- 2 telephones model M.93
- carbon-cylinder microphone
- induction coil
- magneto calling M.93
- DC ringer
- local battery working with DC-
  busy test
Picture 432, click for a real version, Museum für Post und Telekommunikation
Picture 433
Batterycase

All these telephones needed local
batteries for the microphone
current (2 cells) and, if no
magneto were available, for
calling the exchange (6 cells).
These batteries were housed in
little wall cupboards.