This is a tremendously powerful effect that is the definition of packs flat and plays big! The performer shows a display stand bearing eight numbered positions. There is a cardboard strip on the stand, back out, and it is explained that on the reverse side of the strip there are eight different designs. Another board is displayed, back out. The performer states that on the reverse of this board is an enlarged drawing of one of the designs. A spectator names a position from one to eight, and the drawing in that location is noted.
The prediction board is turned around and yes, the drawing is an accurate enlargement of the chosen design! Large enough to play on stage; compact enough for close-up. Packs flat; plays big.
Note: Some Copyrighted images from Andy Martin, used with permission from www.martinsmagic.com