Odakyu Hakone Railway will retire the last of its MoHa 1 and MoHa 2 cars in early 2028. The MoHa1 cars initially entered service when the line first opened in 1919 as ChiKi 1 (MoHa 2 was basically the same but as ChiKi 2 in 1927) before coverted into steel body and renamed to the current designations in the mid 1950s
https://www.odakyu.jp/news/h3de760000009tyr-att/h3de760000009tyy.pdf