This was posted by Carl Navarro in the photo's forum, I couldn't figure out how to move it so just copied:

Quote
Oh, I feel the Spirit :-)

https://www.ebay.com/sch/i.html?_nkw=att+spirit+phone+system

OMG. I see they actually made black! Most of the ones I've see are that funky shade of smoked ivory (cigarette smoked...)

Carl

If the Spirit moves you, PM me before you do any purchasing. The Spirit is in my list of warehouse reduction/elimination items.

EDIT: Upon further review, I see that this is built on a Spirit frame, but it has a display and less buttons than the 24-button set. I can't seem to find a single reference to 1050 or that AT&T ever made it :-)

Maybe it was specific to certain telcos or a one-off experiment that failed?

Retired phone dude