Hi Tony,
First time I heard of a pinned steering box rivet; and I never saw a locking pin on the adjustable steering rivet.
But on the other hand, I have seen so many crazy things on unrestored Model A's, like screw drivers driven in the rear axle for a key in the rear axle keyway ...... just to mention one sighting out of many messed up repairs.
When more modern cars came out, worn out Model A's wound up in the hands of the poorest of the poor. Anything could be expected in this "make-do-era" among poor people.
I remember a time when a middle class American would never want to be seen even riding in a Model A rattle trap jalopy, let alone owning one. Almost anything old not too long ago was considered junk & thrown away ...... today, vintage things have far more value now that people are collecting old items.