I just picked up a bunch of PRR passenger cars and loco at a local train swap meet. This is my first purchase of actual "trains" -- been too focused on building structures and all that other stuff that comes first. A few questions.... I got a Life-Life Alco PA-1 loco. It's an A-unit (PRR 5752A). Can someone tell me about A/B units? Would A units prototypically run without a B unit? What's the purpose of the B unit? And....this loco would have been used for passenger service, right? Also, picked up a number of heavyweight pullman passenger cars. Don't have them here, so can't pull the info on them...but 2 of them that I remember are named Surfside and Poplar Glen. The loco is PRR Tuscan sheme with 5-stripe in gold-leaf. The cars are also tuscan, but in buff (not gold-leaf) and not 5-stripe. Can't even remember if they have a stripe at all. They almost look to me to be steam-era. Can someone give me info on these cars? Are these the same era as the PA-1...could they be (would they still be in service)? And what about paint scheme? Are there passenger cars out there that would match the 5-stripe loco? Or would it be prototypical for the loco to be one look and the cars another? Any info or Web links would be appreciated. Thanks.