This really is an extremely special phone. The housing and the keypad are analogous to the first mobile world, the DynaTAC 8000X. The device must probably be the first phone to which the recent and large screen was installed.
I collect now for 20 years Motorola phones, but I've never seen this device before. On the Internet, there are no pictures yet although it is often mentioned.
I am really very happy that I have found this phone on ebay! 8-)