I hope those are originals, but watch out.. in or around 2000 there where an awful lot of those fore sale.. and these days they can make them fake-old..
Now guys, stop/don't start a long conversation about the authenticity, because we'll never know for sure. (Maybe someone had or found a stash.)
BTW, have you heard, today this? On german radio i heard that there was someone that sold fake oldtimers just by making a copy and sell all over the world making 100's of millions !!! WOW !!! (I saw also a YT video about a fake mercedes 300sl one white and one red with same chassisnumbers!)
If you have a piece of bulkhead with the chassisnumber you CAN make the car legal for as far i know..