K-Line O Gauge K-6737A2 KCC Classic Ore Car 4-Pac Mint factory sealed in open shipper, C10.  Kennecott Copper Corporation KCCX 673705, KCCX 673706, KCCX 673707, KCCX 673708.  Box has un-torn factory over-wrap material.  Shipper shows little wear, square and solid.