The narrow Gauge & Shortline Gazette ran an article on Lombards also, I think they also had plans of one. They wern't the only builder of these things, I think there was an 'Atlas' manufacturer too. Lombard also built some early IC models. They looked just like an early 1920s or '30s truck with cat tracks on the rear.
There was a nice article in Timber Times magazine...I will search for it & let ya'll know. I believe that I saw an HO model of a Lombard offered also. One would make an interesting project but I don't believe they were used anywhere but the north and north east US.
____________________ It doesn't matter if you win or lose, its' how you rig the game.