While up in the Berkshires, I wanted to listen to the Sox/Jays game and happened to find it on WNAW 1230 AM North Adams. A couple of days later in an odd coincidence, I pulled into a restaurant in North Adams and upon getting out of the car, I was staring at the former facility for WNAW/WMNB (It is now a Townsquare property, might not be a local studio).
Today (peeked in windows, building is stripped to framing)
Sometime after 1988 when WNAW call letters were first used
Artist rendition of building circa 1947