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

Picture 481, click for a real version, Museum für Post und Telekommunikation
1908

Model 'Hildesheim',
First type of an Automatic-wall-
telephone, introduced for the first
automatic exchange in
Hildesheim/Germany in 1908.
Manufacturer were the german
'Deutsche Waffen- und Munitionsfabriken Karlsruhe'
and 'Siemens & Halske'
- case of walnut
- 1 telephone with ringmagnet
- carbon-granule microphone,
  adjustable for height
- induction coil
- dial switch like one of the
  'Automatic Electric Co., Chicago'
- push button for ring up the called
  party
- local battery for the microphon
- polarized ringer
1908

Automatic-table-telephone,
introduced for the first automatic
exchange in Hildesheim/Germany
- case of walnut
- handset with telephone and carbon-
  granule microphone
- induction coil
- dial switch
- push button for ring up the called
  party
- local battery for the microphon
- polarized ringer
Picture 482, no real version available