With Reading Railroad T1 No. 2101, the Chessie System ran several excursions during the late 1970s. From the GSVP show "The 2101 Story" https://rfd.video/2101Story | Steam Giants

Reading Railroad 4-8-4 T-1 #2101 is fairly fresh from running the "American Freedom Train" in the east and now performs on the "Chessie Steam Special", celebrating 150 years of the Baltimore & Ohio Railroad. From the GSVP show "The 2101 Story" https://rfd.video/2101Story | Steam Giants

Reading Railroad No. 2101 was pulled out of storage and quickly restored for the American Freedom train during the Bicentennial. It went on to handle special trains for Chessie System's 150th anniversary of the Baltimore & Ohio. From the GSVP show "The 2101 Story" https://rfd.video/2101Story | Steam Giants

1980 was the year we saw the revival of former C&O 4-8-4 number 614 as she returned to steam and powered the Chessie Safety Express excursions. The revival of the 614 was because Reading 2101 was damaged in a roundhouse fire in 1979. From the GSVP show "C&O 614 Revival" https://rfd.video/614Revival | Steam Giants