I have made a couple long-winded posts about Santa Fe prototypes for the Concor N scale "Standard Steel boxcars" from the early days of N scale. at: http://www.trainboard.com/grapevine...le-Freight-Car-Prototypes&p=859084#post859084
You want to know why I love these cars? I model the 70's, and I can weather them into nearly complete submission with no guilt. You're lucky if you can read the lettering at all on the ones I have. I've also got the full set of MT's and I won't weather those.... Check out the car behind the SW1: http://gustafson.home.westpa.net/SW132.jpg Yeah, that's what I'm talkin' about!