Sounds similar to this quote by Winston Goodfellow " I noticed in the records some early Grifos were not produced in proper numerical sequence, and asked Iso company president Piero RIvolta what was up with that. His answer explained much while making me laugh: "We picked the chassis closest to the door." In other words, they weren't concerned about chassis 004 coming after 003; they were focused on getting a car built and out the factory door. This is something many of today’s marque “experts” don't grasp, that back then the constructors never thought about the future, skyrocketing values (which was inconceivable) and potential implications. They simply wanted the next car built and picked whatever chassis was closest to the storage room door."
Someone has the accurate records but hell if he knows, values or cares to share the information.