Board Thread:Questions and Answers/@comment-94.156.6.50-20171212184841

When you purchase Diselisation, Electric, etc. eras, does express trains continue to have trains from the previous eras? I am trying to get as much as possible Steam trains in the museum, so I am still staying at that era and ocasionally a new train arrives that is not yet in the museum, so it gets added. I am aiming at the Grasshopper loco. 