Drywall ,you push it up against the studs and ....well if you need instructions on how to hang dry wall push your call button and tommy will come over and hit you in the head with a tack hammer because you are a retard .

Now this is just a guess. 1920. It must have been pretty new. Just a guess.

[–] Froggy 1 point

Wonder how much residual asbestos you'll find in that building