Black And White Thank You Cards My Brother Has Two Misprinted Black-and-white Baseball Cards. Does Anyone Know How Much They Are Worth?

My brother has two misprinted black-and-white baseball cards. Does anyone know how much they are worth? - black and white thank you cards

This is something of a collective, are the cards "CC Sabathia" and "Mark Mulder". I am sure that Sabathia is a misprint, it may be because my brother a package that is so colorful. Still not sure Mark Mulder. No, you call the X-Files, it's just a coincidence. In addition, it helps if reprinted the CC Sabathia Upper Deck Vintage (together, I suppose) in 2004. Mark Mark Mulder is again an Upper Deck "Play Ball" in 2004. Thank you!