This came from an old magician’s estate. You receive the special original bridge-size Fox Lake cards and instructions.
This is an effect where a regular-looking deck of playing cards first become all blanks on the faces and then become regular again. Then the backs of the cards become all blank and then become regular again.
Then the deck becomes blank on both the face and back side!
Finally the faces and backs of the cards return!
All this is accomplished without the use of any rough and smooth cards.
The detailed instructions describe the handling and moves required.