[ALR-bishop]

They apparently are early proof sheets for the 1969 issue . They can be found with red, blue or black autos. Some of the sheets have been cut and you can find individual cards on ebay. I think Yaz is the only player on the proof sheets who ended up in the set. The same 9 players appear on all 3 sheets but their location differs a little on some.

There was a recent Mile High auction in which deckled versions of these cards ( red autos) were offered and went for substantial sums. The uncut sheets show up on ebay, but not often ( I got all 3 of mine there). The blue autos seem the toughest