In an earlier "Dave and Ryan" video, Dave Olson mentioned that the Legacy Berkshire had Mars light that would light/fade/light/fade in a simulation of an oscillating light. The 2018 and 2020 catalogues show that only the American Railroads #759 has the Mars light, but the Nickel Plate #765 did have such a light for a good portion of its life. The restored version today no longer has the light. However, there have been a few Lionel O gauge Nickel Plate #765 releases that did include the light and a number that have not. I'm hoping that the American Flyer version of the Nickel Plate does include the light in addition to the American Railroads #759 and that Dave was not referring to just one of the Berkshire offerings. I remember the NKP Berkshires running near my house with both of those massive lights ablaze.