That was the Lear Siegler -> Bell & Howell -> Litton -> Dematic Mailmobile. It followed a fluorescent path using a blacklight sensor to guide it. https://www.a

That was the Lear Siegler -> Bell & Howell -> Litton -> Dematic Mailmobile. It followed a fluorescent path using a blacklight sensor to guide it. https://www.atlasobscura.com/articles/mailmobiles-mail-robots-technology-retirement https://www.atlasobscura.com/articles/mailmobiles-mail-robot...