Thank you both for your replies. I did some research on this and the rehab threads and based on the age, there is a NYC bag I am interested in that is gray in color, but it looks like it has some taupe/beige undertones. Now, could it be due to age/fading? Perhaps? I am not sure, but it is no where near as dark as Roro's and not as solid grey as VintageIsBest's.
I found the magazine photo with all the hangtags that represented the colors from the mid-80's and it looks like maybe it is the simple "Grey" color after all, which is lighter.
Here's a 1987 catalog pic of a Flannel Grey Shoulder Sac:
