"FYI reminder, or note:
The venerable and inculcated National Geographic Magazine was never on newsstands until 2000. There would have been no such thing as barcodes prior to this. It was a big deal at the time this change was made, and it has lot…"
"Re: typically, that difference happend stateside owing to the month-long printing process, per issue. So, as TV schedules were buttoned up, they'd ad the reb banner ribbon or text say, in the 3rd or 4th week of printing a March 1970, so that…"
Upon further research I found the reason for the difference. I found 25 copies having the gorilla TV ad and 3 having the Nat Geo Society logo. The difference being the 3 with the Nat Geo Society logo are…"
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