A Union Pacific manifest approaches a lunar signal. This is the first time I've seen a lunar signal. Comments across platforms said a lunar signal is a restricting signal alerting of an obstruction ahead. Signals vary depending on the railroad territory
I was on time for a CSX intermodal train and saw the Chessie System Paint Scheme Heritage Unit. Heritage units are older units for railroads that are a merger.
Take Sprint, the phone company that merged with T-Mobile. Other companies can merge; railroads do it as well.