The Ohmi Railway is a private line east of Kyoto with a small museum at Yokaichi.
Adjacent to the Ohmi Railway Yokaichi Station
The following locomotives are on display:
ED141, ED142, ED143, ED144, 1101, ED311, ED312, ED3??, plus railcars and units
Open daily 10:00-16:00. Entry free.
A report on this museum was in Japanese Railway Society magazine Bullet-In 53
https://www.ohmitetudo.co.jp/railway/fan/museum/