KMT.... Kusan Model trains...... made in Tennessee or Kentucky.... Marx, Williams and K Line all, at one time or another, acquired and made use of their molding dies. And, please check this, I believe Kusan acquired some of their production molds from AMT, American Model Trains from the earlier 1950s. More info can be found on internet, I am going from memory... a risky proposition!
I have a few pieces of KMT and a transformer. A Kusan set was the first my brother and I shared in the mid 50s. As late as 2003 I saw Kusan sets for sale at Puff-N-Stuff Trains in Lake County, Illinois.
Jesse TCA 12-68275