Factory headliner?

Hey folks, got her back on the road after a big check. I am very happy with the car. It’s comfortable and classy. The first being necessary, the second I need all the help I can get. The fabric (wool?) headliner is sagging above my head. Upholsterer said that it will most likely disintegrate once it’s removed. I’ve gotten conflicting reports about it being factory material or not. If it is any suggestions for sourcing? If not, what did it come with? Would appreciate any feedback. I’d also like to know what the color of my interior is called. Thanks In advance!
1984 400i ZFFEB07S000046555
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