Ericsson Rotary - dial card holder

[bitbucket]

I've got an old black Ericsson rotary. It's missing the little rectangular thing on the front that holds the dial card. Can anybody tell me what this part is called or where I might find one?

[dsk]

I understand what part you are looking for, but do not know any name for it. Do you have a picture and model name on it? The distance between the holes for fixing the holder?

dsk