This is a VINTAGE 1979 LIONEL LIMITTED-EDITION fantastic O gauge set featuring a brand-new Lionel #8960 & 8961 Southern Pacific U36C diesel locomotive. The set is ready to go and pre-built and is a LIMITTED-EDITION replica of the iconic locomotive. The yellow locomotive features a Bo-Bo wheel configuration and is made of high-quality plastic and steel materials. This vintage set was manufactured in 1979 and is in C-10 mint brand new condition. The analog control system operates on a 3-rail-2-conductor rail system. The set includes two units and is a great addition to any transportation-themed collection. Don't miss out on this opportunity to own a piece of history! THIS DIESEL ENGINE SET HAS REMAINED IN ITS BOX DISPLAYED ON A SHELF IN MY TRAIN ROOM. OVERALL GRADE, NEW, EXCELLENT, MINT CONDITION. PLEASE VIEW THE PICTURES.