So need some information about how to tell when a N Scale locomotive is produced by a manufacturer? Looking at some locomotives to purchase. Either a couple of used Fox Valley's ES44 GEVO with decoders installed for $98 each or new Kato's GE ES44DC for $80.00 each and the TCS decoders are $40.00 each. But they are brand new an would come with a 1 year warranty right? For sure the 2 Fox Valleys are a better deal, no question. I would guess according to Sppokshow.net that the Kato decoder version are 2017 ones? And the Fox Valley ones are anywhere from 2009 to 2013? I have no clue about this stuff! I'm just a casual model railroad person and buy what I think looks good. Any help appreciated. The used ones the person listed in the Swap Meet area! I like saving money And I don't know the difference in Fox Valley or Kato, really! I know people here buy all types of manufacturers!