Thanks for the info Steve. I uncovered the link below too.
Even though it's Lelands, the claims here sound pretty dubious to me. And just 166 k for 23 packs of these (in 2004) seems awful low too. Plus, of course, GAI.
If the claims are somehow true, I had no idea that the semi-highs and highs could be in the same '52 T packs.
https://lelands.com/bids/bidplace?itemid=19275