I don't know if these have been discussed here before or not. My Two Cents worth they are Unlicensed, VERY Unlicensed. I recall seeing these on Ebay. Every once in a while.
There are some Ebay sellers, maybe the same guy having to make new IDs every few months, who list tons of this type of stuff until the regular card buyers there report enough of their listings. Sometimes those guys have suimsuit or lingerie cards of female celebs that are also very questionable mixed in with their sports cards. They tend to flood the Ebay listings with these when they do list them. I think they also always list them as being "limited" or "collector's editions".
I collect: Baseball, Football, Hockey, Mostly Vintage pre1980, My Homie teams - Washington/Baltimore Teams Senators (Twins, Rangers), Expos/Nationals, Redskins, Capitals, Bullets/Wizards - HOFers - Non-sport (mostly TV shows and movies).
My Trade List is very much a work in progress
CaptKirk42s Trading Card Blog Curly W Cards Strive For '65 YouTube klandersen42