Alphanumeral road sign for Tohoku-Chuō Expressway (Soma − Fukushima-kita), Tohoku Expressway (Fukushima-kita − Fukushima) and Tohoku-Chuō Expressway (Fukushima − Yokote)
Own work based on: E13 Expressway (Japan).png
Ministry of Land, Infrastructure, Transport and Tourism (MLIT) Japan