You and I are in total agreement, unfortunately, we are not the ones making those decisions. who knows what someone might decide needs to be included on a form, and once it starts - it's difficult to stop.
I made my first trip to Africa in the late 70's; I spent 2 days in the Minister of Aviation's office while an officer attempted to convert my FAA license to a local one by comparing my license to pictures of foreign licenses in a 2 volume set of manuals thicker than New York phone books.
He didn't understand what "Date of Issuance" meant - thought it was the expiration date and made the decision my license was invalid. Same thing happen in Brazil a couple years later.
In both instances, supervisors had to be brought in.
The point I'm trying make is some of these "rules" are arbitrary and isolated, but we are at their mercy.
I did speak with the travel agent handling my trip and he was quite surprised. He had just transited thru SA and said the police had him read the serial numbers to them - they never looked at them.
He is thinking this might in fact be an internal issue within Rifle Permits as he has never heard of them asking for pictures of the serial numbers. He will be contacting them and possibly switching to Mr X.
In any event, I drove to Shreveport with a new 4457.
I'll post any further info.