Strange Nike Hybrid?

I came across this pair on eBay, and my attention was caught by the air max 87 uppers and the air max bw mid sole…

i really don’t have an idea what these are… the following explanation of the seller only confuses me more:

these shoes are made by Nike, and are a size Mens 9 (The tag on the tongue says 11, but it is blacked out because they are actually a size 9 as the sole insert sticker says)….

this all indicates that these could be a sample or some kind of homemade hybrid..
anybody got an idea? Found the answer here!