Tilly is Nikolai's "girltrain". Built in 1925 in Russia, she was stolen by the Japanese during World War II and reguaged for use there, only to be stolen by the Escuadrón 201 and brought to Mexico. She was bought by Casey Jones in 1971 after years of being in Mexico, and placed into storage. She was put in the Dock Railway and restored in 1979 to her original colors and look (but not her original guage and couplers). She has buckler couplers instead of hooks and chains.