Agree with most of what the others said. The black and white versions are significantly scarcer than their color counterparts, though the price doesn't always reflect it. The cards can be found imprinted on the front, stamped on the reverse or completely blank. I suspect that the imprinted ones are generally preferred by collectors. The prices listed may be somewhat on the high side, but certainly not outrageous. Here's a picture of my Keefe. Note the stamp on the reverse. That is the reason for the MK qualifier. When I sent the card to SGC it came back a 1.5 due to that stamp! Shows a fundamental lack of understanding about this issue.
