Talk:Seibu 6000 series

Expanded from sandbox
(adding for attribution) On 1 June 2022, this article was significantly expanded using material from User:XtraJovial/sandbox2 (10,000+ bytes; approx. 133%). You can find the full history of the expansion's development there. Please note that some portions were cut and altered when the expanding material was integrated into this article. XtraJovial (talk • contribs) 19:32, 17 November 2022 (UTC)