One Eye Of God by Fraser Parker

One Eye Of God is a peek envelope like no other. It is an entirely self-contained, normal, and attractive gift card-style envelope. It can be shown completely opaque on both sides, yet you are able to always see clearly through it whenever you wish. In this manner, the envelope is able to reveal the secrets of its contents to you. 

There are no slits or moving parts. No use of alcohol to make the envelope transparent or any chemicals which need to be applied. In fact, nothing is added or taken away. There are no moving parts. The ingenious envelope does everything for you. It is self-working and resets on its own. 

No magnets. No thread. No elastics. No electronics. No holding it up to the light or placing it inside another envelope. 

They write their thought on a business card. This can be a name, word, number, or a small drawing. The card is placed into the envelope, sight unseen, where it stays throughout your performance. Nevertheless, you are always able to get a clear peek of what is written. 

This is a break-through and ingenious use of the classic window envelope ruse. However, with this self-contained envelope, you will be able not only to obtain just as clear a peek as with the classic method, but will also be able to prove that the envelope is completely opaque before and after the peek - it really is! 

You will be able to get a peek a little larger than a center tear allows. They write in the center of the card (not in one corner), which makes this entirely natural. It can also be used with ESP cards as a test conditions divination. Again, it is entirely self-contained, self-working and resets on its own and can even be activated whilst placed in the spectator's hands, so they do all of the work for you, without realizing! 

Yes, it does sound too good to be true. Now you can see why Fraser didn't want to share this with many people in the past. He feels it is now the right time to finally share this with the community, before it is copied by someone else.