2121F今日は41Kだった
https://pbs.twimg.com/media/DZVDxxqU0AA3eV6.jpg

2121F半蔵門線内の表示
https://pbs.twimg.com/media/DZVP0gIV4AE-PbD.jpg
https://pbs.twimg.com/media/DZVP0gnV4AEkyt9.jpg

2121F車内LCD
https://pbs.twimg.com/media/DZVPtJkUQAEfSmV.jpg
https://pbs.twimg.com/media/DZVPtK0U0AAhub4.jpg
https://pbs.twimg.com/media/DZVPtMDVwAE3vZ_.jpg