On this first Black Memo:
To me the plexy is wrong.
It is domed since the end of the bezel, and it is totally domed.
Even if very nice, it is not correct, AFAIK.
On this 2d Black Memovox:
The Plexy " starts " domed, then it is less domed, almost flat, like on your white Memovox
To me, it is the correct one.
Do you see what I mean?
You did well, by the way...
The funny thing is that I want to do the same, I mean, to add a white Memo E 855 to my black one.
And wanted to give the same Title to the post, too!
This is THE pair to do!
Best.
Nicolas