On the my rr, I know my dealership & I think it's still there on Chestnut in Fort Bragg, CA. So, on a sales bank car, did the so # come from the dealer too? I just thought it was a plant number. I wondered if sales bank cars were ordered by the dealer or CP just said 'here, take this'. That made more sense to me since they would have received my '70 when the '71's were due any day.