I pretty much agree.

The seller listed another batch of the cards. According to his videos and past listings he should have about 20 sets left (just an uneducated guess).

His listings now are ultra-high priced buy-it-now listings, I guess to see if anyone bites. If his prices become reasonable, I might grab a card to compare.

I agree it may be a 2nd/later printing. But it's also possible the record company had a large quantity of the cards, and not many of the cards found their way to ebay, etc. I'd expect most of the buyers of the CD who received the cards to be from the UK. A second printing may also be near-identical to the original.

1987 Brown's Boxing Supercard #1 James "Bonecrusher" Smith. I placed it next to a normal Brown's card to show the size difference.

https://i.ibb.co/8LW7zHgg/bonefront.jpg

https://i.ibb.co/SDqV70dp/boneback.jpg

A little bit of info regarding that card in pictures below.

Brown's Boxing
 

When Dave Bergin posted his eBay auction for the Brown's Boxing publications I was so excited that I had to send Dave a PM. It brought back some great memories of collecting those boxing cards. He responded with a terrific history of Brown's Boxing. Here is the PM I sent to Dave. Perhaps Dave would be kind enough to share his knowledge.

"Wow! Those are so cool because I have never seen or heard of them before.

I had all of the Brown sets, but sold them last year with Love of the Game Auctions. After collecting baseball, football, hockey, boxing and wrestling for over 60 years I decided it was time to let everything go. I've still got a couple years to go before completing the entire task.

I actually met Johnny Brown by chance when I walked into a small card shop in Rolla, Missouri in the early '90s. Everything in there was baseball except a single 8X10 picture of Mike Tyson on a support column in the center of the shop. We talked about Tyson for a minute and then asked if he had any more boxing stuff. He said no and asked if I had ever heard of Brown's Boxing Cards. I said sure. He said, "Well, I'm Johnny Brown." What a shock! We chatted about the cards and boxing in general.

He said he didn't have any of the Brown's cards left. I was a little suspicious, but said, ok.

I sent him a brief letter and thanked for the time we shared. He send a very nice response.

Several months later, I returned to Rolla. It's about an hour and fifteen minutes from my home just outside of St. Louis. His shop was locked and completely empty. I was very disappointed that I did not get to know this nice man a little better.

Anyway, I really appreciate seeing your eBay auction. If I was still accumulating I would surely bid to win all of them. Best of luck with this, Dave and all your boxing auctions."