The YN2 AC44 insight is not rare but the train in front of it is kind of, the train is a welded rail train for MBTA for the South Coast Rail project for the New Bedford Mainline used by Mass Coastal. This train came in as K504 from Indiana or somewhere in the Midwest, this train will become a bit more common as South Coast Rail expands, but it won't be regular in my view.

Photographed by Dominic Catrambone, June 28, 2021.
Added to the photo archive by Dominic Catrambone, June 29, 2021.
Railroad: CSX (Conrail).

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