[Marco Tahtaras]

Originally Posted by Tom Wesenberg

That's my understanding, and by looking at the gas tank dates, engine numbers, and body numbers, it makes sense that it is the number of that body style assembled since the begining of Model A production at that plant.

Keep in mind that every branch sold some of nearly every model. However it's very unlikely (almost impossible) that every branch produced every body type. This means that some bodies must have come from another branch. The question becomes, was the body number stamped by the branch that assembled the car or was it stamped by the branch that built the body? I'm betting it was the latter.