Who here has herd of ATT (American Trains & Track), or Champ (an old maker of a mysterious 2-6-2). Can anybody fill in the blanks? - :confused: - God bless to all!

I have what is obviously an old train set in a box that with "CHAMP Operating Scale Model Trains" All of my attempts to find anything about CHAMP HO train models on line have only come up with decals. Does anyone know anything about this brand? bill