These are pieces for the third "expansion set" for the variant chess game "Dealer's Chess."
The PDF is of cards that can be printed on cardstock paper; players are dealt seven (or more) at random to determine what their back-row pieces will be for that game.
To print them out, first print two copies of the card-back PDF, then flip the sheets over to print the fronts of the cards.
The moves are described and diagrammed on the cards.