ATC Literature, RE: Empress phone

[RotoTech99]

Happy New Year's Everyone!

Would by chance any of the forum members who have or dealt with ATC/Decotel phones still have practices or literature on them, please?

I recall that in particular Empress phones originally came in yellow, black,white and blue.

I'm trying to recall what the identification code was for a Empress with hardwired handset cord and a spade to modular line cord, please.

ISTR there was a Practice either by Bell System or ATC that detailed how to wire an Empress used as a deskstand with 581A subset providing ringing and network through an interconnect cord I need to find again, please.

I'm getting back into Empress phones and related literature after having lost my original paperwork that was graciously sent to me.

If any CRPF Member who has literature and experience with ATC sets can help, I'd graciously thank them.

RotoTech99