Here is a terrific switch key from the Missouri Pacific Railroad. It is strongly stamped MOPAC in big block letters on its bow. On the other side is stamped serial number 44099. This appears to be a mid-century key dating probably from the 1940s or thereabouts.
Very attractive, with "just the right amount" of use showing. The only and very minor criticism is that the "A" in MOPAC has been rubbed/scratched, as has the bottom of the leg of the "P." With light scratch marks on the opposite side, we are going to suggest this was caused by rubbing from a metal key ring. It looks MUCH better in real life - as opposed to our monster computer picture enlargements.
Headquartered in St. Louis, Missouri, the Missouri Pacific was one of the first railroads in the United States to operate west of the Mississippi River. It emerged in 1872 from dozens of predecessors and their combinations. Over decades it sprawled over thousands of miles of track, creating a massive impact on the American midwest and west. The MOPAC ran until 1982 when it was finally purchased by the Union Pacific Corporation.
Vintage Missouri Pacific Railroad Brass Switch Key MOPAC