Originally Posted by
Popinjay
seats 1b and 1c (not the back row of the carriage). I think 1a is a space for a wheelchair
Why do you think that?
I think Row 1 is at the "front" of the car on Westbound trains and at the back on Eastbound. See the seat map below for trains heading West. Of course configurations differ on different train types, but I think the orientation of the numbering is the same.
https://railway.jr-central.co.jp/tra...1_01/seat.html