My first glimpse of a rotary was back in 1979 on a road trip with a some college buddies to Newport, RI. Once off I-95 and onto a state highway, there were a number of them. We all had a good laugh at the signs "Rotary Ahead". Then we discovered they called submarine/cold-cut sandwiches "Grinders". I love that part of the country.
I hadn't seen any more NE rotaries until just a few years ago when I spent a week in Rockport, Mass. There were a couple of them just outside Gloucester, one of which had a grass center that must have been 100 yards across. Salem had a number of them as well.
Still reading through old trade journals. Saw this MU car built for the Great Indian Peninsula Railway:
The article (Railway Age, March 28, 1925) reported that these units were built to be effectively fire-proof and able to operate in water two feet deep. I wonder what the equipment was like over on the Not-So-Great Indian Peninsula Railway. Having seen many photos of Indian railway operations, this one was probably designed with a 200-person capacity.