Special Magazine 3D Promo Cards & Glasses:

The American Nintendo Power 3D VB-special issue number 75, August 1995 comes with original 3D VB glasses to view the 3D special edition VB promo cards.
Front of the VB promo cards;
Back of the VB promo cards;

These are the 3D glasses that came with issue 75 of Nintendo Power Magazine. 
They were given ONLY to subscribers.  Newsstand copies didn't include the glasses.
The ChromaDepth® glasses create striking 3D images from normal 2D images by pulling forward the color red to the foreground and sorting the remaining colors according to their position in the rainbow.

Nintendo's "Game Player" magazine distributed over 550,000 ChromaDepth® glasses with an ad insert to introduce the "Virtual Boy" video game.

Front:


Back:

This is the small envelope the Nintendo Power 3D glasses came in "for your eyes only".
Front:


Back:
Text "Open here... and make the pages of Nintendo Power Enter a new dimension"