Ericsson mobile phone PT 680

Ericsson mobile phone PT 680
this phone is very old and only found in museums and private collections.
Carrying bag PT 680:
Ser. No. 638259
Code: RR-19B230 R6A
System: NMT 450
Produced: 198?-198?
Height: 27 cm, width: 11 cm, length: 27 cm,
Weight: 6.6 kg
Battery PT 680:
Ser. No. 540247
Code: RR-198234/2 R2A
DC Charger:
XSG 100011-0001
Max 18V 0.8A
Type: 7504
Ser. No. 610021
Code: RR-198503 R2A
The mobile phone is in good condition, with minor signs of wear (see pictures).
The bottom shell of the handset is broken in the magnet area and has been repaired (glued), it is not visible when the handset is put down.
The original battery can be charged, but it is not known how long it will stay charged.
There is no guarantee that the battery will be fully functional as it was when it was delivered some 30 years ago.
The device starts working, the display of the handset lights up and indicates that it is ready to work.
It was not possible to verify that the device operates at the wavelengths specified by the factory.
No warranty, guarantee, return, modification and no obligation to take back.