I attach the press release announcing the historic liveries marking the CTA's 75th anniversary, including the green, cream and orange scheme (my favorite) it used on its #1-50 and #6000 cars back in the 1950s and subsequent years. The CTA also maintains an historic fleet, which will be utilized to mark this benchmark. Kudos and congratulations to the CTA!
https://www.transitchicago.com...service-to-chicago1/
NOTE: This is a CTA photo, and is contained within the CTA press release.