Hozum Shiosaka and Aya Murase and I got together for lunch and a trip to the Shinagawa History Museum.
We ate at Shangri La in the Omori railroad station, the walked (in the rain, the edge of a typhoon) to Shinagawa (1/2 mile). The museum features the Omori shell mounds and the Tokaido road, among other things. The first post of the Tokaido Road, which connected Tokyo and Kyoto during the Edo period, was here. People travelling the road could stop here to rest, shop, etc.
Unfortunately, no photos allowed on the main floor, but upstairs . . .