I found it. I thought it was in a general discussion thread. Then when I read through the entire Very Blonde Girl with Ashtray I found this discussion I am referring to. I had forgotten how much detail was explored. Very impressive work but I'm not sure we reached a lot of solid conclusions. I think the best guess for the time of this apartment background was 1970 New York. I think this is the thread that made us think there was already a thread for singer girl. See Very Blonde Girl In Orange Chair With Ashtray.